![]() ![]() Verify that you’re talking to the right person.Hide Signal messages on your lock screen.If you wish to jump ahead to a specific section, you can click the appropriate link: I discuss these steps at length below, in order of importance. You can download Signal from the Android Play Store and the iPhone App Store.Īlthough Signal is well-designed, there are extra steps you must take if you want to maximize the security for your most sensitive conversations - the ones that could be misinterpreted by an employer, client, or airport security screener might be of interest to a snooping government, whether at home or abroad or could allow a thief or hacker to blackmail you or steal your identity. It also has open source code, meaning it can be inspected to verify security. Signal is easy to use, works on both iOS and Android, and encrypts communications so that only the sender and recipient can decipher them. There are dozens of messaging apps for iPhone and Android, but one in particular continues to stand out in the crowd. Check here for more recent information about Signal. We created this feature to protect users against threats like the Twilio attack.This article is out of date. To best protect your account, we strongly recommend that you enable registration lock in the app’s Settings. Open Signal on your phone and register your Signal account again if the app prompts you to do so. If you received an SMS message from Signal with a link to this support article, please follow these steps: We are notifying these 1,900 users directly, and prompting them to re-register Signal on their devices. ![]() 1,900 users is a very small percentage of Signal’s total users, meaning that most were not affected. This attack has since been shut down by Twilio. Here’s what our users need to know:Īll users can rest assured that their message history, contact lists, profile information, whom they’d blocked, and other personal data remain private and secure and were not affected.įor about 1,900 users, an attacker could have attempted to re-register their number to another device or learned that their number was registered to Signal. Recently Twilio, the company that provides Signal with phone number verification services, suffered a phishing attack. ![]()
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