Is Bluesky Safe? Security Review
4/5
Overall Safety Score
★
★
★
★
★
Verdict: Bluesky is a promising privacy-respecting alternative to mainstream social media. Its decentralized design is a genuine improvement, though the platform is still maturing and all posts are public by default.
Bluesky is a decentralized social media platform built on the AT Protocol, originally incubated within Twitter. It gives users more control over their data and feed algorithms through its open, federated design.
Security Ratings Breakdown
| Category | Score | Rating |
|---|---|---|
| Encryption | 3/5 | |
| Privacy | 4/5 | |
| Track Record | 4/5 |
Security Features
- Decentralized AT Protocol allows data portability
- User-controlled feed algorithms
- Composable moderation (users choose moderation services)
- Two-factor authentication
- Open-source protocol and client code
Privacy Concerns
- All posts are public by default (no private accounts yet as of early 2025)
- Decentralized design means posts are federated across servers
- DMs are not end-to-end encrypted
- Relatively new platform still developing security infrastructure
Past Security Incidents
- No major security breaches as of 2025
- Some moderation challenges during rapid growth periods
How to Stay Safe Using Bluesky
- Be aware all posts are public and federated
- Enable two-factor authentication
- Don't share sensitive info via DMs (not encrypted)
- Review and customize moderation settings
Safer Alternatives
- Mastodon (more established federated platform)
- Threads (larger user base)
Last updated: February 10, 2026