Unlock Your Encrypted Mobile Backups

Both Apple and Google provide mechanisms for creating encrypted backups of your mobile device. Apple's iTunes (now Finder on macOS) offers an "Encrypt local backup" option that protects your backup with a password. Android's adb backup command similarly allows password-protected backups via USB.

These passwords are set once and often forgotten because they're rarely used again — sometimes not for months or years. Unlike your device's lock screen PIN, backup encryption passwords are not stored in your Apple ID or Google account. Once forgotten, the only way to access the backup data is to recover the original password.

Common scenarios include: upgrading to a new phone and needing to restore from an old encrypted backup, losing a device and needing data from the only remaining backup, forensic data recovery after an incident, or IT administrators managing corporate device backups where the original employee who set the password is no longer available.

Our service uses advanced brute-force and dictionary attacks to test millions of password candidates against the encryption hash embedded in your backup file — and we only need the header or manifest file, not your actual personal data.

Android Debug Bridge (ADB) backups create .ab files that contain a compressed archive of your selected applications, settings, and data. When you choose to encrypt the backup during creation, Android uses PBKDF2 with HMAC-SHA1 to derive an encryption key from your password, then encrypts the backup data using AES-256.

How ADB Backup Encryption Works

The .ab file begins with a plaintext header containing the encryption parameters: the version number, compression flag, encryption type, user password salt, master key checksum salt, PBKDF2 iteration count, user IV, and the encrypted master key. This header is all that's needed for password recovery — the actual backup data (your apps, photos, messages) is stored after this header in an encrypted blob that we never need to process.

Creating an ADB Backup

ADB backups are created using the command: adb backup -apk -shared -all -f backup.ab. The device will prompt you for an encryption password. This password is what our service recovers. Note that Google deprecated full ADB backups starting with Android 12, but millions of older backups still exist on users' computers.

When you check "Encrypt local backup" in iTunes (Windows) or Finder (macOS), Apple creates an encrypted backup that includes additional sensitive data not present in unencrypted backups: saved Wi-Fi passwords, website history, health data, and Keychain entries. This makes encrypted backups extremely valuable — and losing the password extremely frustrating.

iOS Backup Encryption Versions

Apple has significantly strengthened backup encryption over the years:

Privacy-First: Upload Only the Manifest

For iOS backup recovery, you only need to upload the Manifest.plist file (or Manifest.db for newer backups). This small file contains the encryption verification hash — essentially just enough data to test passwords against. It does not contain your photos, messages, contacts, health data, or any other personal information. Your privacy is completely protected during the recovery process.

The difficulty of mobile backup password recovery depends primarily on two factors: the PBKDF2 iteration count (which determines how computationally expensive each password guess is) and the password's complexity (length, character set, and randomness).

Android .ab Encryption Performance

Android ADB backups typically use 10,000 PBKDF2-HMAC-SHA1 iterations (Hashcat mode 18900). On our servers, we achieve approximately 3-5 million hashes per second. This means common passwords are discovered within minutes, and even moderately complex passwords within hours.

iOS Backup Encryption Performance

iOS backups are significantly more computationally intensive. Pre-iOS 10.2 backups use ~10,000 PBKDF2-SHA1 iterations (similar performance to Android). However, iOS 10.2+ backups use ~10,000,000 PBKDF2-SHA256 iterations — roughly 1,000x harder per guess. On our infrastructure, this translates to approximately 3,000-5,000 hashes per second for the newer format, making dictionary quality and attack strategy critically important.

Success Rates

Recovery success depends on the password. Passwords based on common words, names, dates, or simple patterns (e.g., "password123", "iphone2024", "MyDog'sName") have high recovery rates exceeding 60%. Truly random passwords (e.g., "k8$mPq!2xZ") are significantly harder. Our system combines massive dictionary databases with thousands of mutation rules to maximize coverage across all password types.

Before using our paid recovery service, consider these alternatives that might help you recover or reset your backup password for free:

If none of these methods work, our professional recovery service is your best option. We've recovered thousands of mobile backup passwords for clients worldwide.