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Grocery startup Mercato spilled years of data, but didn’t tell its customers

A security lapse at online grocery delivery startup Mercato exposed tens of thousands of customer orders, TechCrunch has learned.

A person with knowledge of the incident told TechCrunch that the incident happened in January after one of the company’s cloud storage buckets, hosted on Amazon’s cloud, was left open and unprotected.

The company fixed the data spill, but has not yet alerted its customers.

Mercato was founded in 2015 and helps over a thousand smaller grocers and specialty food stores get online for pickup or delivery, without having to sign up for delivery services like Instacart or Amazon Fresh. Mercato operates in Boston, Chicago, Los Angeles and New York, where the company is headquartered.

TechCrunch obtained a copy of the exposed data and verified a portion of the records by matching names and addresses against known existing accounts and public records. The data set contained more than 70,000 orders dating between September 2015 and November 2019, and included customer names and email addresses, home addresses and order details. Each record also had the user’s IP address of the device they used to place the order.

The data set also included the personal data and order details of company executives.

It’s not clear how the security lapse happened since storage buckets on Amazon’s cloud are private by default, or when the company learned of the exposure.

Companies are required to disclose data breaches or security lapses to state attorneys-general, but no notices have been published where they are required by law, such as California. The data set had more than 1,800 residents in California, more than three times the number needed to trigger mandatory disclosure under the state’s data breach notification laws.

It’s also not known if Mercato disclosed the incident to investors ahead of its $26 million Series A raise earlier this month. Velvet Sea Ventures, which led the round, did not respond to emails requesting comment.

In a statement, Mercato chief executive Bobby Brannigan confirmed the incident but declined to answer our questions, citing an ongoing investigation.

“We are conducting a complete audit using a third party and will be contacting the individuals who have been affected. We are confident that no credit card data was accessed because we do not store those details on our servers. We will continually inform all authoritative bodies and stakeholders, including investors, regarding the findings of our audit and any steps needed to remedy this situation,” said Brannigan.


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