In a data breach notification letter filed with regulators this weekend, 23andMe revealed that hackers started breaking into customers’ accounts in April 2023 and continued through most of September.In other words, for around five months, 23andMe did not detect a series of cyberattacks where hackers were trying — and often succeeding — in brute-forcing access to customers’ accounts, according to a legally required filing 23andMe sent to California’s attorney general.Months after the hackers started targetin ...