Are you using Windows 7?  Did you know some of the largest firms in the country (even large financial institutions) are still using it?  Today is the day that Microsoft ends support for Windows 7 and will no longer offer security updates leaving anyone using it open to cyberattacks.  Any Windows 7 machine that is connected to the internet is vulnerable to ransomware, malicious malware, hackers and all zero-day security threats. Additionally, companies who are not receiving regular security patches are out of compliance with any number of regulatory requirements.