Two of the more popular encrypted messaging apps, Signal and Telegram, both experienced service issues today. Telegram was inaccessible for users in Europe, the Middle East, and North Africa, while Signal was down for hours across Europe, the US, Asia, and Australia. “Some of our users in Europe and the MENA region are currently experiencing connection issues,” says Telegram spokesperson. “Please hang on, we have all hands on deck to bring you back soon!”

Signal doesn’t provide a status indicator for its service, and its official Twitter account looks like it’s mostly used to share product updates rather than outage information. Both Signal and Telegram have risen in popularity thanks to their focus on advanced security features and the ability to hold secret conversations with end-to-end encryption. While most rival messaging services now include end-to-end encryption, both Signal and Telegram were among the first to offer encryption as a feature years ago.

Update, 5:30AM ET: Telegram and Signal are both starting to come back online in various regions.