With the massive shift to remote work due to COVID-19 – with upwards of 42% of US employees now working remotely according to Stanford professor William D. Eberle – there’s been an uptick in security breaches. It seems reasonable to expect this trend to continue as working from home is normalized and more employees use personal devices to access the infrastructure necessary to perform their duties.

Here’s a quick rundown of the largest data security breaches from last year:

What is a zero-day vulnerability?

A zero-day (or 0-day) vulnerability is a software vulnerability that hasn’t been publicly disclosed or was recently discovered due to a successful attack. Once the threat is discovered, the race is on to patch the vulnerability before it can be exploited. In other words, the software developers have zero days to fix the vulnerability.

Approximately 360,000,000 people use Firefox every single day. 90 % of them or 324,000,000 people use Windows computers. Using a small utility called PasswordFox.exe, I can steal at least 324,000,000 passwords in all of 60 seconds.