The pseudonymous Twitter user and blockchain investigator Officer’s Notes believes they may have been a suspect in the $195 million Euler Finance hack. In an April 4 Twitter thread, the security researcher stated, “Seems like I was a suspect in this case, as usual.”

The Euler team has denied that Officer's Notes was a suspect, claiming instead that the researcher was helpful in the investigation.

 Officer’s Notes stated that the Euler team woke them up “in the middle of the night,” asking for access data logs from the Op Sec repo, including IP addresses of people who have visited it. Officer's Notes complied with the request after being told “This data was crucial in the investigation.”

Officer’s Notes expressed remorse for handing out this information, seeing it as a violation of readers’ privacy.