Managing Encryption for Data Centers Is Hard. And It Will Get Harder With multi-cloud already here and quantum computing on the horizon, most should probably leave encryption to the experts. Give up on trying to do it all yourself and leave it to the experts. Encryption is a core tenet for cybersecurity. Attackers can't steal data that's encrypted. No matter what Hollywood says, there's no way for a hacker to get through one layer of good encryption, much less "several layers of encryption." But encryption comes with a lot of challenges. In a survey last fall by the Cyber Security Competency Group, 66 percent of respondents said that the management of encryption keys was either a "big" or "medium" challenge for their companies.