

[…] it can be a security risk, allowing malware to move “laterally” between all your devices.
Unless you do something incredibly stupid, such as allowing keyless login or sharing keys (or having unencrypted keys or keys without a passphrase, seriously), I find it hard to see how that would actually happen in practice.
Sure, it’s just that from my point-of-view I’d be toast anyway if anyone managed to gain that level of access.