alt Hacker NewsThere is normally a wiki page for every popular program which normally contains an official site URL. That's how I remember where to actually get PuTTY. Wiki can potentially be abused if it's a lesser known software, but, in general, it's a good indicator of legitimacy.
So wikipedia is now part of the supply chain (informally) which means there is another set of people who will try to hijack Wikipedia, as if we didn't had enough, just great.