Our validator icon is a tribute to when we operated the lpSOL liquid staking token (details below).
Sign Labs runs on higher hardware specs than recommended by Solana Foundation, and we have one of the highest performing un-modded validators on the network in terms of vote credits. Sign Labs' validator also earned rewards 40% higher than the median over a 50 epoch sample size (slot 665 to slot 715). Details at Solana Compass
Critical Linux security patches are applied within 24 hours. Standard security updates are performed periodically to keep the node secure. Solana software gets updated on the Anza schedule, and in extremely rare scenarios, if there is risk of getting forked away from the primary chain.