: Attackers use old, popular search strings to rank highly on search engines.

In the early 2000s, software activation keys or serials became a standard method for protecting software from unauthorized use. These keys are unique strings of characters that a user must enter during the installation process or when prompted by the software. The purpose is to verify that the user has a legitimate copy of the software.

: Updates were distributed as .seu files, which stood for "Serials 2000 Edition Update".