Copias de seguridad cifradas de Signal para iOS – Almacenamiento seguro de mensajes y medios

Introduction

Signal has expanded its encrypted backup service to iOS, allowing users to securely preserve their message history and media. This update addresses a long-standing limitation where losing a device meant permanent data loss. Now, daily encrypted backups protect conversations and recent media, reinforcing Signal's commitment to privacy.

Secure Backup Features

Signal's encrypted message backup, already available on Android, now supports iOS devices. This cross-platform feature ensures that text messages and the last 45 days of media are backed up daily. Users start with 100 MB of free storage, with an optional $1.99 monthly subscription for up to 100 GB. This marks Signal's first monetization effort, funding large media storage without ads or data mining. For those using encrypted backup tools, this aligns with industry standards for secure data handling.

Security and Encryption

Backups use zero-knowledge encryption, meaning only the user holds the 64-character recovery key generated on their device. Media files receive double encryption and padding to reduce metadata leaks. Disappearing and view-once messages are excluded from backups by design. This approach enhances privacy for users of messaging apps and encryption tools, ensuring sensitive data stays protected.

Pros and Cons

Advantages

• Prevents permanent loss of messages and media on iOS
• Uses zero-knowledge encryption for maximum privacy
• Free tier with 100 MB storage for basic needs
• Paid option offers up to 100 GB for heavy users
• Double encryption on media files reduces metadata risks
• Cross-platform consistency with Android backup features
• No ads or data mining, maintaining Signal's ethos

Disadvantages

• Monthly subscription required for larger storage needs
• Excludes disappearing and view-once messages from backups
• Recovery key management can be challenging for some users
• Limited to last 45 days of media in free backups

Conclusion

Signal's encrypted backup for iOS is a significant step toward data security, offering reliable protection against message loss. With robust encryption and flexible storage options, it supports privacy-conscious users. This update strengthens Signal's position among cloud backup and secure email solutions, providing peace of mind in an increasingly digital world.