Android Application Secure Design/Secure Coding Guidebook

August 27, 2025 Edition

Japan Smartphone Security Association (JSSEC)

Secure Coding Working Group

• The content of this guide is up to date as of the time of publication, but standards and environments are constantly evolving. When using sample code, make sure you are adhering to the latest coding standards and best practices.

• JSSEC and the writers of this guide are not responsible for how you use this document. Full responsibility lies with you, the user of the information provided.

• Android is a trademark or a registered trademark of Google Inc. The company names, product names and service names appearing in this document are generally the registered trademarks or trademarks of their respective companies. Further, the registered trademark ®, trademark (TM) and copyright © symbols are not used throughout this document.

• Parts of this document are copied from or based on content created and provided by Google, Inc. They are used here in accordance with the provisions of the Creative Commons Attribution 3.0 License

Revision history

2014-04-01

Initial English Edition

2014-07-01

Added new articles below

• 5.5. Handling privacy data

• 5.6. Using Cryptography

2015-06-01

We have reviewed the entire document in accordance with the following policy

• Change of development environment (Eclipse -> Android Studio)

• Responding to Android latest version Lollipop

• Change of API Level (8 or later -> 15 or later)

2016-02-01

Added new articles below

• 4.10. Using Notifications

• 5.7. Using biometric authentication features

Revised article below

• 5.2. Permission and Protection Level

2016-09-01

Revised articles below

• 2.5. Importing Sample Code into Android Studio

• 5.4. Communicating via HTTPS

• 5.6. Using Cryptography

2017-02-01

Added new articles below

• 5.4.3.7. Network Security Configuration

Revised articles below

• 4.1. Creating/Using Activities

• 4.2. Receiving/Sending Broadcasts

• 4.4. Creating/Using Services

• 4.5. Using SQLite

• 4.6. Handling Files

Deleted the section below

• 4.8.3.4 BuildConfig.DEBUG Should Be Used in ADT 21 or Later

We have reviewed the entire document in accordance with the following policy

• All discussions in the main text concerning Android 4.0.3 (API Level 15) and earlier versions have been deleted or moved to footnotes.

2018-02-01

Added new articles below

• 4.1.3.6. The Autofill framework

• 5.3.3.2. Cases in which Authenticator accounts with non-matching signatures may be read in Android 8.0 (API Level 26) or later

• 5.4.3.8. (Column): Transitioning to TLS1.2/TLS1.3 for secure connections

• 5.5.3.3. Version-dependent differences in handling of Android IDs

Revised articles below

• 4.2. Receiving/Sending Broadcasts

• 5.2. Permission and Protection Level

• 5.3. Add In-house Accounts to Account Manager

• 5.4. Communicating via HTTPS

• 5.5. Handling privacy data

2018-09-01

Added new articles below

• 4.9.3.4. Safe Browsing in WebView

• 4.11. Using Shared Memory

Revised articles below

• 2.5. Importing Sample Code into Android Studio

• 4.1.3.6. The Autofill framework

• 4.5.3.6. [Reference] Encrypt SQLite Database (SQLCipher for Android)

• 5.2.1.2. How to Communicate Between In-house Applications with In-house-defined Signature Permission

• 5.4.1.2. Communicating via HTTPS<!– 2b8c337d –>

• 5.4.3.7. Network Security Configuration

• 5.7. Using biometric authentication features

• 5.4.3.2. Install Root Certificate of Private Certificate Authority to Android OS's Certification Store

• 5.4.3.8. (Column): Transitioning to TLS1.2/TLS1.3 for secure connections

2019-09-01

Added new articles below

• 4.6.3.5. External storage access for Android 10 and later

• 5.5.3.4. Restriction on obtaining non-resettable device identifiers on Android 10

Revised articles below

• 4.1.3.1. Combination of Exported Attribute and Intent Filter Setting (For Activity)

• 4.4.1.2. Creating/Using Public Services

• 4.4.3.1. Combination of Exported Attribute and Intent-filter Setting (In the Case of Service)

• 4.6.1.4. Using Eternal Memory (Read Write Public) Files

• 5.2.3.6. Modifications to the Permission model specifications in Android versions 6.0 and later

• 5.4.1.1. Communicating via HTTP

• 5.4.1.2. Communicating via HTTPS<!– 2b8c337d –>

• 5.4.3.8. (Column): Transitioning to TLS1.2/TLS1.3 for secure connections

• 5.5.1.2. Broad consent is granted: Applications that incorporate application privacy policy

• 5.6.2.2. Use Strong Algorithms (Specifically, Algorithms that Meet the Relevant Criteria) (Required)

• 5.6.3.2. Generation of random numbers

• 5.7. Using biometric authentication features

2019-12-01

Revised articles below

• 4.1.3.1. Combination of Exported Attribute and Intent Filter Setting (For Activity)

• 4.4.1.2. Creating/Using Public Services

• 4.4.3.1. Combination of Exported Attribute and Intent-filter Setting (In the Case of Service)

2020-11-01

Added new articles below

• 5.2.3.7. Function That Automatically Resets Unused App Permissions in Android 11.0 and Later

• 5.5.3.5. Data Access Auditing

• 5.5.3.6. Location Information Access

• 5.6.3.5. Conscrypt Module

• 5.7.3.2. Changes to Biometric Authentication on Android 11

Revised articles below

• 3.1.1.2. Function Assets of an Android Smartphone

• 5.2.3.6. Modifications to the Permission model specifications in Android versions 6.0 and later

2021-10-19

Added new articles below

• 4.2.3.7. ACTION_CLOSE_SYSTEM_DIALOGS

• 4.10.3.2. Touch to Be Passed Through Specific Window

• 4.7.3.2. PendingIntent Mutability

• 5.5.3.8. Auto-hibernation Function for Unused Applications on Android 12

• 5.5.3.9. API Return Value Change Following Specification Changes to the Package Access

• 5.5.3.10. Microphones and Cameras For Android 12

• 5.5.3.11. SameSite Cookie on WebView

• 6.1.3.3. Clipboard Access Notification

Revised articles below

• 4.1.3.1. Combination of Exported Attribute and Intent Filter Setting (For Activity)

• 4.9.2.3. Verify That the URL Received from Others Such as Through Intent Is the Expected URL (Required)

• 5.5.3.5. Data Access Auditing

• 5.5.3.6. Location Information Access

• 5.6.3.5. Conscrypt Module

• 6.1.3.2. Usage of Information Stored in Clipboard

2022-01-17

Revised articles below

• 2.2. Sample Code, Rule Book, Advanced Topics

2022-08-29

Added new articles below

• 4.7.3.3. Strict Enforcement of Intent Filter

• 4.2.3.8. Enhanced Safety of Dynamic Broadcast Receiver

• 4.10.3.3. Runtime Permissions for Notifications

• 5.2.3.8. Revoking Runtime Permissions

• 4.11.4.2. Disabling sharedUserId in Newly Installed Apps

Revised articles below

• 2.4. Literature on Android Secure Coding

• 2.5. Importing Sample Code into Android Studio

• 5.1.3.4. Disabling Screen Shot

• 5.5.3.6. Location Information Access

• 6.1.3.2. Usage of Information Stored in Clipboard

2024-2-29

Added new articles below

• 4.4.3.3. Requirement for Specifying of Service Types

• 4.6.3.7. Enhanced Safety of DCL (Dynamic Code Loading)

• 4.6.3.9. Measures for Preventing Path Traversal by Zip Files

• 4.10.3.4. Change in Operation for Notifications Indicating Progress

• 4.6.3.8. Package Name of Media Owner

Revised articles below

• 4.1.3.3. About Root Activity

• 4.2.3.8. Enhanced Safety of Dynamic Broadcast Receiver

2025-1-29

Added new articles below

• 4.7.3.4. Expanded IntentFilter capabilities

• 4.7.3.6. Safer Intents

• 4.7.3.5. Changes to PendingIntent and Package Stopped State

• 4.3.3.1. Content URI Permission Management

• 4.4.3.4. Foreground Service Changes

• 4.6.3.5. External storage access for Android 10 and later

• 4.6.3.6. Shared storage access for Android 10 and later

• 4.6.3.10. Query the most recent user’s choice for accessing selected photos

• 5.5.3.15. Private Space

• 5.1.3.5. Integrate Credential Manager with Autofill

• 5.5.3.12. Screen Recording Detection

• 5.5.3.13. Partial Screen Sharing

• 5.5.3.14. Changes in Global State Management in DND mode

• 5.6.3.6. Countermeasures against backup data leaks

• 5.6.3.7. Hard-coded Cryptographic Secrets

Revised articles below

• 4.1.3.7. Secure Background Activity Launch

Deleted the section below

• 4.6.3.6. About specifications related to access to external storage in Android 10 (API Level 29)

• 4.6.3.7. Application of Scoped Storage in Android 11 (API Level 30)

• 4.6.3.8. Media Collection Permissions in Android 13 (API Level 33)

• 4.6.3.9. Partial Access to Images and Videos in Android 14 (API Level 34)

2025-8-27

Added new articles below

• 4.2.3.9. Changes to the Priority Specification for Ordered Broadcasts

• 4.6.3.11. MediaStore version lockdown

• 4.6.3.12. App-owned photos

• 4.7.3.6. Safer Intents

• 4.7.3.7. Countermeasures against Intent redirect attacks

• 5.5.3.7. Local network permission

• 5.6.3.8. Mechanism and risks of inter-app key sharing using Key Sharing API

• 5.6.3.9. (Column) Key Management with Google Play App Signing

Revised articles below

• 4.6.3.4. Internal storage access for Android 10 and later

• 4.6.3.5. External storage access for Android 10 and later

• 4.6.3.6. Shared storage access for Android 10 and later

• 4.7.3.1. Component Export Control and Intent Sending Restrictions

• 4.7.3.2. PendingIntent Mutability

• 4.7.3.3. Strict Enforcement of Intent Filter

• 4.7.3.4. Expanded IntentFilter capabilities

• 4.7.3.5. Changes to PendingIntent and Package Stopped State

• 5.5.3.15. Private Space

• 5.5.3.8. Auto-hibernation Function for Unused Applications on Android 12

• 5.5.3.9. API Return Value Change Following Specification Changes to the Package Access

• 4.11.4.2. Disabling sharedUserId in Newly Installed Apps

• 2.2. Sample Code, Rule Book, Advanced Topics

• 5.1.3.5. Integrate Credential Manager with Autofill

• 4.6.3.8. Package Name of Media Owner

• 5.3.3.2. Cases in which Authenticator accounts with non-matching signatures may be read in Android 8.0 (API Level 26) or later

Deleted the section below

• 4.1.3.3. Reading Intents Sent to an Activity

• 4.6.3.4. Specification Change regarding External Storage Access in Android 4.4 (API Level 19) and later

• 4.6.3.5. Revised specifications in Android 7.0 (API Level 24) for accessing specific directories on external storage media

• 4.9.3.1. Vulnerability caused by addJavascriptInterface() at Android versions 4.1 or earlier

• 5.3.3.2. Exception Occurs When Signature Keys of User Application and Authenticator Application Are Different, in Android 4.0.x

• 5.6.3.3. Measures to Protect against Vulnerabilities in Random-Number Generators

Note: For a detailed description of these revisions, see Section Articles Revised from January 29, 2025 Edition.

For the release of this new edition, we have updated the contents of this Guidebook based on your comments and suggestions.

Published by

Japan Smartphone Security Association (JSSEC), Technical Subcommittee, Secure Coding Working Group

Leader	Tsutomu Miyazaki	LAC Co., Ltd.
Members	Ryuta Nakagami	LAC Co., Ltd.
	Akihiro Shiota	NTT DATA Corporation
	Teruaki Honma	KDDI CORPORATION
	Harunobu Agematsu	KDDI CORPORATION

(In no particular order)

Authors of January 29 2025 Edition

Leader

Tsutomu Miyazaki

LAC Co., Ltd.

Member

Ryuta Nakagami	Nuligen Security Co., Ltd.
Akihiro Shiota	NTT DATA Corporation
Teruaki Honma	KDDI CORPORATION
Harunobu Agematsu	KDDI CORPORATION

(In no particular order)

Authors of February 29 2024 Edition

Leader

Tsutomu Miyazaki

LAC Co., Ltd.

Member

Akihiro Shiota	NTT DATA Corporation
Teruaki Honma	KDDI CORPORATION
Harunobu Agematsu	KDDI CORPORATION
Naruhiko Ogasawara	SHIFT SECURITY
Yoshinori Saida	NEC Corporation
Toru Aoyagi	NEC Corporation

(In no particular order)

Authors of August 29 2022 Edition

Leader

Tsutomu Miyazaki

LAC Co., Ltd.

Member

Pantuhong Sorasiri	LAC Co., Ltd.
Akihiro Shiota	NTT DATA Corporation
Teruaki Honma	KDDI CORPORATION
Harunobu Agematsu	KDDI CORPORATION

(In no particular order)

Authors of January 17 2022 Edition

Leader

Tsutomu Miyazaki

LAC Co., Ltd.

Member

Nao Komatsu	LAC Co., Ltd.
Teruaki Honma	KDDI CORPORATION

(In no particular order)

Authors of October 19 2021 Edition

Leader

Tsutomu Miyazaki

LAC Co., Ltd.

Member

Nao Komatsu	LAC Co., Ltd.
Teruaki Honma	KDDI CORPORATION

(In no particular order)

Authors of November 1, 2020 Edition

Leader

Tsutomu Miyazaki

LAC Co., Ltd.

Member

Akihiro Shiota	NTT DATA Corporation
Teruaki Honma	KDDI CORPORATION
Saida Yoshinori	NEC Corporation

(In no particular order)

Authors of September 1 2019 Edition

Leader

Jun Ogiso

Sony Digital Network Applications, Inc.

Member

Toshimi Sawada	Software Research Associates, Inc.
Kohei Suzuki	Software Research Associates, Inc.
Akihiro Shiota	NTT DATA Corporation
Teruaki Honma	KDDI CORPORATION
Junki Hisamoto	Sony Digital Network Applications, Inc.
Nobuaki Yamaguchi	Sony Digital Network Applications, Inc.
Gaku Taniguchi	Tao Software, Inc.
Ito Takefumi	Nihon System Kaihatsu Co., Ltd.

(In no particular order)

Authors of September 1, 2018 Edition

Leader

Akira Ando

Sony Digital Network Applications, Inc.

Member

Toshimi Sawada	Software Research Associates, Inc.
Kohei Suzuki	Software Research Associates, Inc.
Teruaki Honma	KDDI CORPORATION
Jun Ogiso	Sony Digital Network Applications, Inc.
Junki Hisamoto	Sony Digital Network Applications, Inc.
Nobuaki Yamaguchi	Sony Digital Network Applications, Inc.
Shigeru Yatabe	Fomalhaut Techno Solutions

(In no particular order)

Authors of February 1, 2018 Edition

Leader

Akira Ando

Sony Digital Network Applications, Inc.

Member

Ken Okuyma	Android Security Japan
Eiji Hoshimoto	Software Research Associates, Inc.
Akihiro Shiota	NTT DATA Corporation
Shigenori Takei	NTT Software Corporation
Ikuya Fukumoto	Japan Computer Emergency Response Team Coordination Center (JPCERT/CC)
Mariko Yoshida	Sony Digital Network Applications, Inc.
Nobuaki Yamaguchi	Sony Digital Network Applications, Inc.
Jun Ogiso	Sony Digital Network Applications, Inc.
Junki Hisamoto	Sony Digital Network Applications, Inc.
Masahiro Kasahara	SoftBank Corp.
Ito Takefumi	Nihon System Kaihatsu Co., Ltd.
Shigeru Yatabe	Fomalhaut Techno Solutions

(In no particular order)

Authors of February 1, 2017 Edition

Leader

Ken Okuyama

Sony Digital Network Applications, Inc.

Member

Shigeharu Araki	Android Security Japan
Eiji Shimano	Android Security Japan
Akihiro Shiota	NTT DATA Corporation
Shigenori Takei	NTT Software Corporation
Ikuya Fukumoto	Software Research Associates, Inc.
Tomomi Ohuchi	Software Research Associates, Inc.
Yoichi Yamanoi	Software Research Associates, Inc.
Hidenori Yamaji	Sony Corporation
Akira Ando	Sony Digital Network Applications, Inc.
Jun Ogiso	Sony Digital Network Applications, Inc.
Masaru Matsunami	Sony Digital Network Applications, Inc.
Tetsuya Takahashi	SQUARE ENIX CO., LTD.
Gaku Taniguchi	Tao Software, Inc.

(In no particular order)

Authors of September 1, 2016 Edition

Leader

Masaru Matsunami

Sony Digital Network Applications, Inc.

Member

Shigeharu Araki	Android Security Japan
Shigenori Takei	NTT Software Corporation
Ikuya Fukumoto	Software Research Associates, Inc.
Tomomi Ohuchi	Software Research Associates, Inc.
Hidenori Yamaji	Sony Corporation
Akira Ando	Sony Digital Network Applications, Inc.
Jun Ogiso	Sony Digital Network Applications, Inc.
Ken Okuyama	Sony Digital Network Applications, Inc.
Mitake Ohtani	Sony Digital Network Applications, Inc.
Daisuke Mitsuzono	Nihon System Kaihatsu Co., Ltd.
Eiji Shimano	Tao Software, Inc.
Gaku Taniguchi	Tao Software, Inc.

(In no particular order)

Authors of February 1, 2016 Edition

Leader

Masaru Matsunami

Sony Digital Network Applications, Inc.

Member

Masaomi Adachi	Android Security Japan
Tohru Ohzono	Cisco Systems, Inc.
Shigenori Takei	NTT Software Corporation
Masahiro Kasahara	SoftBank Mobile Corp.
Eiji Hoshimoto	Software Research Associates, Inc.
Ikuya Fukumono	Software Research Associates, Inc.
Akira Ando	Sony Digital Network Applications, Inc.
Ken Okuyama	Sony Digital Network Applications, Inc.
Mitake Ohtani	Sony Digital Network Applications, Inc.
Muneaki Nishimura	Sony Digital Network Applications, Inc.
Setsuko Kaji	Sony Digital Network Applications, Inc.
Taeko Ito	Sony Digital Network Applications, Inc.
Hidenori Yamaji	Sony Mobile Communications Inc.
Eiji Shimano	Tao Software, Inc.
Gaku Taniguchi	Tao Software, Inc.

(In no particular order)

Authors of June 1, 2015 Edition

Leader

Masaru Matsunami

Sony Digital Network Applications, Inc.

Member

Tohru Ohzono	Cisco Systems, Inc.
Akio Kondo	BRILLIANTSERVICE co., Ltd.
Kazuma Mitake	BRILLIANTSERVICE co., Ltd.
Kyosuke Imanishi	BRILLIANTSERVICE co., Ltd.
Masato Shintani	BRILLIANTSERVICE co., Ltd.
Naohiko Shimura	BRILLIANTSERVICE co., Ltd.
Ryuji Fujita	BRILLIANTSERVICE co., Ltd.
Shohei Hara	BRILLIANTSERVICE co., Ltd.
Tomoyuki Fujisawa	BRILLIANTSERVICE co., Ltd.
Yutaka Kawahara	BRILLIANTSERVICE co., Ltd.
Shigeru Yatabe	Fomalhaut Techno Solutions
Naonobu Yatsukawa	Nihon Unisys, Ltd.
Shigenori Takei	NTT Software Corporation
Masahiro Kasahara	SoftBank Mobile Corp.
Eiji Hoshimoto	Software Research Associates, Inc.
Akira Ando	Sony Digital Network Applications, Inc.
Ken Okuyama	Sony Digital Network Applications, Inc.
Muneaki Nishimura	Sony Digital Network Applications, Inc.
Eiji Shimano	Tao Software, Inc.
Gaku Taniguchi	Tao Software, Inc.

(In no particular order)

Authors of July 1, 2014 English Edition

Leader

Masaru Matsunami

Sony Digital Network Applications, Inc.

Member

Tohru Ohzono	Cisco Systems, Inc.
Shigeru Yatabe	Fomalhaut Techno Solutions
Keisuke Takemori	KDDI CORPORATION
Takamasa Isohara	KDDI CORPORATION
Naonobu Yatsukawa	Nihon Unisys, Ltd.
Shigenori Takei	NTT Software Corporation
Masahiro Kasahara	SoftBank Mobile Corp.
Eiji Hoshimoto	Software Research Associates, Inc.
Tsutomu Kumazawa	Software Research Associates, Inc.
Akira Ando	Sony Digital Network Applications, Inc.
Ken Okuyama	Sony Digital Network Applications, Inc.
Setsuko Kaji	Sony Digital Network Applications, Inc.
Taeko Ito	Sony Digital Network Applications, Inc.
Yoshinori Kataoka	Sony Digital Network Applications, Inc.
Eiji Shimano	Tao Software, Inc.
Gaku Taniguchi	Tao Software, Inc.
Michiyoshi Sato	Tokyo System House Co., Ltd.

(In no particular order)

Authors of April 1, 2014 English Edition

Leader

Masaru Matsunami

Sony Digital Network Applications, Inc.

Member

Tomoyuki Hasegawa	Android Security Japan
Mayumi Nishiyama	BJIT Inc.
Tohru Ohzono	Cisco Systems, Inc.
Masaki Kubo	Japan Computer Emergency Response Team Coordination Center (JPCERT/CC)
Daniel Burrowes	Kobe Digital Labo Inc.
Zachary Mathis	Kobe Digital Labo Inc.
Renta Futamura	NextGen, Inc.
Naonobu Yatsukawa	Nihon Unisys, Ltd.
Shigenori Takei	NTT Software Corporation
Ikuya Fukumono	Software Research Associates, Inc.
Tsutomu Kumazawa	Software Research Associates, Inc.
Akira Ando	Sony Digital Network Applications, Inc.
Hiroko Nakajima	Sony Digital Network Applications, Inc.
Ken Okuyama	Sony Digital Network Applications, Inc.
Satoshi Fujimura	Sony Digital Network Applications, Inc.
Setsuko Kaji	Sony Digital Network Applications, Inc.
Taeko Ito	Sony Digital Network Applications, Inc.
Yoshinori Kataoka	Sony Digital Network Applications, Inc.
Hidenori Yamaji	Sony Mobile Communications Inc.
Takuya Nishibayashi	Sony Mobile Communications Inc.
Koji Isoda	Symantec Japan, Inc.
Gaku Taniguchi	Tao Software, Inc.
Michiyoshi Sato	Tokyo System House Co., Ltd.

(In no particular order)

Authors of April 1, 2013 Japanese Edition

Leader

Masaru Matsunami

Sony Digital Network Applications, Inc.

Member

Masaomi Adachi	Android Security Japan
Tomoyuki Hasegawa	Android Security Japan
Yuki Abe	Software Research Associates, Inc.
Tomomi Oouchi	Software Research Associates, Inc.
Tsutomu Kumazawa	Software Research Associates, Inc.
Toshimi Sawada	Software Research Associates, Inc.
Kiyoshi Hata	Software Research Associates, Inc.
Youichi Higa	Software Research Associates, Inc.
Yuu Fukui	Software Research Associates, Inc.
Ikuya Fukumoto	Software Research Associates, Inc.
Eiji Hoshimoto	Software Research Associates, Inc.
Shun Yokoi	Software Research Associates, Inc.
Takakazu Yoshizawa	Software Research Associates, Inc.
Takeshi Fujiwara	NRI SecureTechnologies, Ltd.
Shigenori Takei	NTT Software Corporation
Masaki Kubo	Japan Computer Emergency Response Team Coordination Center(JPCERT/CC)
Hiroshi Kumagai	Japan Computer Emergency Response Team Coordination Center(JPCERT/CC)
Yozo Toda	Japan Computer Emergency Response Team Coordination Center(JPCERT/CC)
Tohru Ohzono	Cisco Systems, Inc.
Toru Asano	Sony Digital Network Applications, Inc.
Akira Ando	Sony Digital Network Applications, Inc.
Ryohji Ikebe	Sony Digital Network Applications, Inc.
Jun Ogiso	Sony Digital Network Applications, Inc.
Ken Okuyama	Sony Digital Network Applications, Inc.
Yoshinori Kataoka	Sony Digital Network Applications, Inc.
Muneaki Nishimura	Sony Digital Network Applications, Inc.
Koji Furusawa	Sony Digital Network Applications, Inc.
Kenji Yamaoka	Sony Digital Network Applications, Inc.
Gaku Taniguchi	Tao Software, Inc.
Naonobu Yatsukawa	Nihon Unisys, Ltd.
Shigeru Yatabe	Fomalhaut Techno Solutions

(In no particular order)

Authors of November 1, 2012 Japanese Edition

Leader

Masaru Matsunami

Sony Digital Network Applications, Inc.

Member

Katsuhiko Sato	Android Security Japan
Nakaguchi Akihiko	Android Security Japan
Tomomi Oouchi	Software Research Associates, Inc.
Naoyuki Ohira	Software Research Associates, Inc.
Tsutomu Kumazawa	Software Research Associates, Inc.
Miki Sekikawa	Software Research Associates, Inc.
Seigo Nakano	Software Research Associates, Inc.
Youichi Higa	Software Research Associates, Inc.
Ikuya Fukumoto	Software Research Associates, Inc.
Eiji Hoshimoto	Software Research Associates, Inc.
Shoichi Yasuda	Software Research Associates, Inc.
Tadayuki Yahiro	Software Research Associates, Inc.
Takakazu Yoshizawa	Software Research Associates, Inc.
Shigenori Takei	NTT Software Corporation
Keisuke Takemori	KDDI CORPORATION
Masaki Kubo	Japan Computer Emergency Response Team Coordination Center(JPCERT/CC)
Hiroshi Kumagai	Japan Computer Emergency Response Team Coordination Center(JPCERT/CC)
Yozo Toda	Japan Computer Emergency Response Team Coordination Center(JPCERT/CC)
Tohru Ohzono	Cisco Systems, Inc.
Toru Asano	Sony Digital Network Applications, Inc.
Akira Ando	Sony Digital Network Applications, Inc.
Ryohji Ikebe	Sony Digital Network Applications, Inc.
Shigeru Ichikawa	Sony Digital Network Applications, Inc.
Mitake Ohtani	Sony Digital Network Applications, Inc.
Jun Ogiso	Sony Digital Network Applications, Inc.
Ken Okuyama	Sony Digital Network Applications, Inc.
Yoshinori Kataoka	Sony Digital Network Applications, Inc.
Ikue Sato	Sony Digital Network Applications, Inc.
Muneaki Nishimura	Sony Digital Network Applications, Inc.
Kazuo Yamaoka	Sony Digital Network Applications, Inc.
Takeru Kikkawa	Sony Digital Network Applications, Inc.
Gaku Taniguchi	Tao Software, Inc.
Eiji Shimano	Tao Software, Inc.
Hisao Kitamura	Tao Software, Inc.
Takao Yamakawa	Japan Online Game Association
Masaki Ishihara	Nihon System Kaihatsu Co., Ltd.
Yasuaki Mori	Nihon System Kaihatsu Co., Ltd.
Naonobu Yatsukawa	Nihon Unisys, Ltd.
Shigeru Yatabe	Fomalhaut Techno Solutions
Shigeki Fujii	UNIADEX, Ltd.

(In no particular order)

Authors of June 1, 2012 Japanese Edition

Leader

Masaru Matsunami

Sony Digital Network Applications, Inc.

Member

Katsuhiko Sato	Android Security Japan
Tomomi Oouchi	Software Research Associates, Inc.
Youichi Higa	Software Research Associates, Inc.
Eiji Hoshimoto	Software Research Associates, Inc.
Shigenori Takei	NTT Software Corporation
Masaaki Chida	GREE, Inc.
Masaki Kubo	Japan Computer Emergency Response Team Coordination Center(JPCERT/CC)
Hiroshi Kumagai	Japan Computer Emergency Response Team Coordination Center(JPCERT/CC)
Yozo Toda	Japan Computer Emergency Response Team Coordination Center(JPCERT/CC)
Tohru Ohzono	Cisco Systems, Inc.
Yoichi Taguchi	System House. ING Co., Ltd.
Masahiko Sakamoto	Secure Sky Technology, Inc.
Akira Ando	Sony Digital Network Applications, Inc.
Shigeru Ichikawa	Sony Digital Network Applications, Inc.
Ken Okuyama	Sony Digital Network Applications, Inc.
Shigeru Ichikawa	Sony Digital Network Applications, Inc.
Ken Okuyama	Sony Digital Network Applications, Inc.
Ikue Sato	Sony Digital Network Applications, Inc.
Muneaki Nishimura	Sony Digital Network Applications, Inc.
Kazuo Yamaoka	Sony Digital Network Applications, Inc.
Gaku Taniguchi	Tao Software, Inc.
Eiji Shimano	Tao Software, Inc.
Hisao Kitamura	Tao Software, Inc.
Michiyoshi Sato	Tokyo System House Co., Ltd.
Masakazu Hattori	Trend Micro Incorporated.
Naonobu Yatsukawa	Nihon Unisys, Ltd.
Shigeru Yatabe	Fomalhaut Techno Solutions
Shigeki Fujii	UNIADEX, Ltd.

(In no particular order)