該程序利用 Android 的備份服務將永久性應用程序數據保存到一個遠程云存儲中。
Android 的備份服務可以使應用程序將永久性數據保存到一個遠程云存儲上，以便以后為應用程序數據提供一個恢復點。
通過在 <application> 標簽中定義 backupAgent 屬性，可以為 Android 應用程序配置該備份服務。
但是，由于不同設備的云存儲和傳輸方式不同，Android 并不保證您的數據在使用備份功能時的安全性。
[1] Standards Mapping - OWASP Top 10 2007 - (OWASP 2007) A6 Information Leakage and Improper Error Handling
[2] Standards Mapping - OWASP Top 10 2004 - (OWASP 2004) A8 Insecure Storage
[3] Android Developers API Guide:Data Backup Android
[4] Standards Mapping - Security Technical Implementation Guide Version 3 - (STIG 3) APP3210.1 CAT II, APP3310 CAT I, APP3340 CAT I
[5] Standards Mapping - Security Technical Implementation Guide Version 3.4 - (STIG 3.4) APP3210.1 CAT II, APP3310 CAT I, APP3340 CAT I
[6] Standards Mapping - Common Weakness Enumeration - (CWE) CWE ID 359
[7] Standards Mapping - Web Application Security Consortium 24 + 2 - (WASC 24 + 2) Information Leakage
[8] JavaDoc for Android Android
[9] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 - (PCI 2.0) Requirement 3.2, Requirement 3.4, Requirement 4.2, Requirement 6.5.5, Requirement 8.4
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 - (PCI 1.2) Requirement 3.2, Requirement 3.4, Requirement 4.2, Requirement 6.5.6, Requirement 8.4
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 - (PCI 1.1) Requirement 3.2, Requirement 3.4, Requirement 4.2, Requirement 8.4