An unknown intruder was able to access team communication platform HipChat last weekend, allowing access to the account information of users, including email addresses, hashed passwords and names. There is also a chance that actual room metadata, which includes the room name and room topic, may have been compromised. The cyber-attacker was able to access a server in the HipChat Cloud web tier.
HipChat has advised that it reset all passwords of all affected accounts following the intrusion and has provided instructions to users on how to reset their passwords. It is important to follow those instructions if they are received from a company that has suffered an attack and you are affected.