The #InternetArchive is an invaluable resource for all kinds of reasons and is available free of charge. It has even been used to catch companies silently changing their terms of service.
Headline: Internet Archive Breach Exposes 31 Million Users
Subtitle: The hack exposed the data of 31 million users as the embattled Wayback Machine maker scrambles to stay online and contain the fallout of digital—and legal—attacks.
Source: https://www.wired.com/story/internet-archive-hacked/