[14] In February 2019, Coffee Meets Bagel acknowledged that an attacker had stolen "a partial list of user details, specifically names and email addresses" between late 2017 and mid-2018.

[15] On August 27, 2023, Coffee Meets Bagel's service became unavailable without warning, with the company's engineers stating that they are dealing with a "system outage".

Several users have expressed their dissatisfaction on the popular discussion forum Reddit, citing Coffee Meets Bagel's lack of transparent incident explanation and failure to provide service for multiple days.

In a FAQ, co-founder and co-CEO Dawoon explained that the outage was due to "an outside actor who maliciously deleted company data and files" and that a thorough investigation was launched to understand the full scope of the incident.

[18][19] Features of the Coffee Meets Bagel app include limiting the number of profiles users can interact with each day and offering ice-breaker information for matches.