Signal and Telegram messaging services offline for some hours


Signal and Telegram messaging services offline for some hours

For some hours users of the popular encrypted messaging services Signal and Telegram have been reporting problems accessing the services.

Signal down

It’s unclear whether the outages are connected to each other, or what the reason for the services being offline might be. Until either service shares details, it’s just speculation whether the secure messaging services have been successfully targeted with a distributed denial-of-service (DDoS) attack, for instance.

Sign up to our free newsletter.
Security news, advice, and tips.

What we do know is that there are certainly a number of forces out there who take a dim view of secure, encrypted messaging services and would like to see them disrupted.

Telegram posted on Twitter, apologising to users affected in Europe, the Middle East and North Africa.

It appears that both services are now beginning to come back online, although some users are still reporting problems connecting.

Now might be a good time to remind everyone of three principles that are essential to information security: Confidentiality, Integrity, and Availability (also known by the rather natty three letter acronym of CIA).

Many internet users use Signal and Telegram because of the benefits they can bring in terms of confidentiality and integrity, but on this particular occasion the utilities are useless without also being actually available.

Graham Cluley is an award-winning keynote speaker who has given presentations around the world about cybersecurity, hackers, and online privacy. A veteran of the computer security industry since the early 1990s, he wrote the first ever version of Dr Solomon's Anti-Virus Toolkit for Windows, makes regular media appearances, and is the co-host of the popular "Smashing Security" podcast. Follow him on Twitter, Mastodon, Threads, Bluesky, or drop him an email.

What do you think? Leave a comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.