I think that’s very common in cybersecurity

e.g. John MacAfee used computer viruses in the 80’s as marketing, which is how he made a fortune

They were real, like this is, but it is also marketing

Yes, but it’s usually cyber security companies doing this and not companies that were affected by a breach let’s say.

Anthropic wasn't affected by this breach, so I don't see the difference. Rather, Anthropic systems were used to attack other companies

Anthropic is the one publishing the blog post, not a company that's affected by the breach

I get that. But you have to acknowledge that this is different than McAfee. Someone used their tool to attack someone else. I don't think McAfee would boast about their tools being used for hacking.