Increase in Password Spraying Attacks

Per Microsoft, there is a marked increase in Password Spraying attacks. With this being security awareness month, take the opportunity to educate your users NOT to reuse passwords on different sites/applications. 

If you have the capabilities, I recommend watching your logs for login failures for different users from the same IP. Do some diligence in looking up WHOIS and geolocation data, then block IPs for unexplainable failures at your ingress points.