The validator server is hosted by Latitude in enterprise-grade infrastructure and is operated with the highest standards of security (connection by SSH key only, brut-force attacks protection, firewall, ..) and monitoring (monitoring system hosted on a second server).
The validator have three keypairs (identity, vote and autorized withdraw).
Only the identity keypair, required for the operation of the validator, is hosted on the server. The vote keypair is stored with a standard encryption protocol (256-bits AES). The withdrawal authority keypair is stored on a hardwallet.

Better Stake than Sorry

LuckyStake validates blocks on Solana since January 2023