The data breach disclosed by Ubiquiti Networks could be just the tip of the iceberg, a deeper incident could have hit the company. In January, the American technology vendor suffered a data breach, it sent out notification emails to its customers asking them to change their passwords and enable 2FA for their accounts. The attackers also provided proof theyd stolen the source code of the company and revealed they have planted another backdoor in its infrastructure. Further investigation revealed the presence of a backdoor on the first week of January.”]
Source: https://securityaffairs.co/wordpress/116196/data-breach/ubiquiti-security-breach.html

