I am very leery of recommending QNAP. Lots of vulnerabilities.
Listening to Security Now and Steve Gibson basically hates them. I think they are much less vulnerable if they are only used internally and don't have a web presence. I much prefer Synology though.
QNAP fixes critical bug letting hackers inject malicious code
QNAP is warning customers to install QTS and QuTS firmware updates that fix a critical security vulnerability allowing remote attackers to inject malicious code on QNAP NAS devices.
www.bleepingcomputer.com
Listening to Security Now and Steve Gibson basically hates them. I think they are much less vulnerable if they are only used internally and don't have a web presence. I much prefer Synology though.