Crypto exchange-traded fund (ETF) issuer Fidelity Investments confirmed a data breach compromised the personal information of over 77,000 of its customers. On Oct. 9, Fidelity filed with Maine’s Attorney General stating that 77,099 of its customers were impacted by a breach — a fraction of its 51.5 million customer base. An attacker accessed customer names and other personal identifiers between Aug. 17 and 19 by using two customer accounts that they had recently established. The unauthorized access was terminated on Aug. 19 when Fidelity first spotted the breach. The $5 trillion asset manager …