In my opinion, if the company is allowed to see the data and train on it, then they are also responsible for reporting stuff like this. Without knowing the data licensing agreement the lady had with Anthropic, if she agreed to letting Anthropic see her data, then they should do stuff like this. If she didn't agree, then I wouldn't condemn Anthropic for failing to report an attack
In my opinion, if the company is allowed to see the data and train on it, then they are also responsible for reporting stuff like this. Without knowing the data licensing agreement the lady had with Anthropic, if she agreed to letting Anthropic see her data, then they should do stuff like this. If she didn't agree, then I wouldn't condemn Anthropic for failing to report an attack