Here's the direct link to the announcement: https://app.roll20.net/forum/post/7209691/roll20-security-breach
Here's the full text:
Steve K. Roll20 Team
Earlier today, Roll20 was named in a report as one of several victims of an attack by cybercriminals. While we can confirm a breach did occur, we are currently focused on finding out all the facts. For now, it’s important to note the report makes clear that no financial data was included in the breach.
Our security teams work tirelessly to fix potential weaknesses in our systems, and we take seriously our responsibility to safeguard our users’ personal information.
Here’s how we do that:
Roll20 only maintains the following personal information: users’ name, email address, hashed password, last login IP and time of login, and the last 4 credit card digits.
We use Stripe and PayPal to process transactions; all billing information is handled by them and never touches our servers.
We utilize bcrypt for password hashing, which means that it cannot be reverse-engineered for utilization with other sites or to access Roll20.
We know it’s frustrating to not have all the facts, and we’re working to uncover the full extent of this breach. We will be continuously updating our members with information as our investigation continues.
Thanks to Vince Florio for the tip: https://www.theevildm.com/2019/02/reporting-news-roll20net-data-breach.html?fbclid=IwAR2cHya_uOtgpQhls_jp2BnjTbovQPYzY2OFXwiZDUpOY8zTmXSj-3MXCdk
Link to report: https://techcrunch.com/2019/02/14/hacker-strikes-again/