Signal Support Help Center home page Signal Support
Signal.org Donate Contact Us
العربية Deutsch Español فارسی Français हिंदी Bahasa Indonesia Italiano 日本語 ဗမာ Nederlands Polski Português do Brasil Русский ไทย Türkçe Українська اردو Tiếng Việt 繁體中文
  1. Signal Support
  2. Security
  3. Security FAQ

Security FAQ

This section contains common questions regarding safety and reliability of the technology in the apps.

  • Is it private? Can I trust it?
  • Does Signal send my number to my contacts?
  • Supporting Older Operating Systems
  • Signal Profiles and Message Requests
  • What is a safety number and why do I see that it changed?
  • How can I report a security vulnerability?
  • Twilio Incident: What Signal Users Need to Know
Signal is committed to your privacy. Signal runs on donations as a nonprofit. No ads, no trackers. Donate here!