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MasterCard had a critical DNS error which went unnoticed for five years. A misconfiguration in their DNS records could have allowed attackers to intercept or redirect internet traffic. A security researcher found the error, registered the misconfigured domain (akam.ne) for $300 and fixed it before any abuse could occur. The misconfiguration was on a DNS server that was supposed to end in ‘akam.net’ but instead was configured to use ‘akam.ne’.