Patch Tuesday
Updated: 04/26/2017 by Computer Hope
The second Tuesday of each month is known as Patch Tuesday, a day when Microsoft releases security patches for their Windows operation systems. Since the release of Microsoft Update, patches for other software, like Office suites and SQL Server, are serviced on Patch Tuesday too.
Sometimes, a worm or vulnerability exploit is released a few days before Patch Tuesday, disallowing Microsoft the ability to fix the issue in time. With this knowledge, some malware creators wait until a few days before Patch Tuesday to release their malware programs so they could optimize the delay.