How to combat cyber crime

Some vendors can act as backups when a cyberattack knocks the regular provider's system offline. Others offer vendor management expertise that may help.

Keeping vendor arrangements under wraps, "pen-tests" and a few simple email setting changes can make a world of difference in avoiding future attacks, experts say.

Malicious actors could be utilizing the same software that cybersecurity experts use to test a company's systems for vulnerabilities.