Two days ago, Internet Archive has been hacked again. Wayback Machine, Archive-It & blog.archive.org has been already resumed.
See the Internet Archive page, for the current status.
If you used the service in the past or you are using any connected services by IA, they might not work until fixed. (For example downloading free demo of Heroes II for fheroes2 is affected. But browsing old celestialheavens site works.)
According this, much longer explanation article, it's the second hack in this month and hacker compromised also their support ticket system. That's just awful!
Yep, current days on the internet, can be tough.