Can you prevent future Magento hacks?

No one can promise 100%, but the right hardening dramatically lowers the risk. After cleanup we apply security patches promptly, lock down the admin (custom URL, 2FA, IP allow-listing), tighten permissions, remove unused extensions, and add file-integrity monitoring so any new change is flagged before it becomes a breach. For stores that want this maintained continuously, the Security Retainer keeps patches current and monitoring live year-round.