The #tailscale installed directly on the #edgerouters X/Lite is a neat idea, but sadly, the performance is not there. However, as a backup, it should be fine, I guess.
Hackers backed by Russia and China are infecting SOHO routers like yours, FBI warns

Six years on, routers remain a favorite post for concealing malicious activities.

Ars Technica
Russia-linked APT28 compromised Ubiquiti EdgeRouters to facilitate cyber operations

Russian cyberspies are compromising Ubiquiti EdgeRouters to evade detection, warns a joint advisory published by authorities.

Security Affairs
#Russian hackers hijack #Ubiquiti routers to launch stealthy attacks
"#EdgeRouters are often shipped with default credentials and limited to no firewall protections to accommodate wireless internet service providers (#WISP)," the joint advisory warns. "Additionally, EdgeRouters do not automatically update firmware unless a consumer configures them to do so."
#FBI disrupted a #botnet of EdgeRouters infected with #Moobot #malware by #cybercriminals not linked with #APT28
https://www.bleepingcomputer.com/news/security/russian-hackers-hijack-ubiquiti-routers-to-launch-stealthy-attacks/
Russian hackers hijack Ubiquiti routers to launch stealthy attacks

Russian APT28 military hackers are using compromised Ubiquiti EdgeRouters to evade detection, the FBI says in a joint advisory issued with the NSA, the U.S. Cyber Command, and international partners.

BleepingComputer