Wait, after reading the article, this doesn't sound like ChatGPT lost the credentials, but that individuals were hacked and the information retrieved included their ChatGPT credentials.
That's usually how it goes. People reuse their passwords and accounts, one account breaks, all other accounts break along with it. Then it's reported as a huge data leak targetting one of those potential sources, depending on what gets you the most clicks at the time. Currently ChatGPT. If their databases had been breached, I feel 100.000 wouldn't be the number.
Not saying it won't be, eventually. But this ain't it, it appears.