"Anxious key" Satoshi Nakamoto promulgated at the bitcoin conference in Lisbon

[ViktoriaM]

In my news line got such a message -
The signal system was originally implemented in version 0.3.10 to alert all network clients about critical vulnerabilities or attacks. The system lasted until November 2016 and was abolished in version 0.13.10.
Previously it was believed that only the private key for system activation is owned by Satoshi Nakamoto, former Bitcoin Core developer Gavin Andresen and administrator of the forum bitcointalk.org Theymos.

 - did you hear anything about it?

[BitcoinHodler]

yes this is somewhat of an old news. the "Alert System" has not been in use for a very long time now and there has been a lot of discussions about it so far. you can read the story and see the actual keys in this topic if you are interested: https://bitcointalk.org/index.php?topic=4587836.0