But when the crooks start using an exploit before a patch is available, the hole is rather quaintly called a zero-day, or 0-day pronounced oh day, because the maximum number of days you could have been patched ahead of the exploit was zero.
In 265.M33, Admiral Usurs of the Imperial Navy was cast down by the High Lords of Terra for becoming too ambitious. However, he is still too powerful within the Navy to be executed without initiating a costly civil war, so he is instead despatched on an Explorator mission to the intergalactic gulf beyond the Milky Way. For the following decade, Usurs reports reach Terra by Astropath, detailing the conquest of new star systems for the Emperor. After two decades, these reports finally cease. Contact is never reestablished with the star systems Usurs mentioned in his reports. 2b1af7f3a8