From helpnetsecurity.com
Network-attached storage (NAS) devices are a helpful solution for storing, managing, and sharing files and backups and, as such, they are an attractive target for cyber criminals.
They are most often used by consumers (on home networks) and small-to-medium businesses (on business networks).
Palo Alto Networks researchers recently found some 240,000 QNAP and approximately 3,500 Synology NAS devices exposed to the public internet.
Other vendors offering NAS solutions include Zyxel, Western Digital, Seagate, LenovoEMC, and others.