TechCrunch·4 min read·medium
Signed up for Klaviyo? Dozens of advertisers may have seen your password
Z
Zack Whittaker
✦AI Summary
Marketing platform Klaviyo inadvertently shared sensitive customer sign-up data, including passwords and email addresses, with third-party advertisers due to a misconfigured web form. The vulnerability persisted for over a year before being discovered by security researchers.
Newly revealed security research found that until recently, marketing tech giant Klaviyo was inadvertently sharing the sign-up information of its new customers, including their passwords, with outside advertisers.
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