For anyone in IT (and even home computer users), Microsoft’s monthly “Patch Tuesday” is an important part of their cyber hygiene routine. This month’s update proved to be a particularly critical one.
Early in January, the National Security Agency (NSA) alerted Microsoft to a major flaw in Windows 10 that could let hackers pose as legitimate software companies, service providers, websites, or others. "It's the equivalent of a building security desk checking IDs before permitting a contractor to come up and install new equipment," Ashkan Soltani, a security expert and former chief technologist for the Federal Trade Commission, told CNN.
Fortunately, Microsoft acted quickly and issued a critical update — CVE-2020-0601 — on January 14.
Despite this quick action, businesses and government have a habit of missing, ignoring, or delaying important patches and updates. They do so at their peril. In 2019, the majority of cybersecurity breaches were a result of unapplied patches. However, the reasons for this oversight are complicated and often unintentional.
Patch management — IT’s nightmare
Getting a handle on patch management is an unending challenge for IT and security teams. Last year, 12,174 common vulnerabilities and exposures (CVEs) were reported — making patching an almost impossible task for any organization. In fact, it takes the average organization 38 days to patch a vulnerability. Even then, 25% of software vulnerabilities remain unpatched for more than a year.
One of the biggest obstacles to frequent patching is that security teams struggle to identify everything that needs to be fixed. Understaffed and struggling with alert fatigue, it can be hard to identify the systems that are yet to be updated, prioritize remediation, and apply patches quickly.
To add to their workload, IT and cybersecurity teams must also make certain that the appropriate security policies are in place to ensure that users regularly update their PCs and devices, and don’t delay the inevitable “Windows Update.”
Risk also extends beyond the four walls of the business. Third- and fourth-party cyber risk is a big threat to businesses — 59% of breaches have their origins in vulnerable and unpatched third-party systems. The trouble is that vendor risk assessment questionnaires only offer a point-in-time view into the security posture, including unpatched software of suppliers, partners, and sub-contractors — leaving IT in the dark.