As reported in the NCSC’s Weekly Threat Report at the end of last week, Microsoft has warned Office365 customers of a widespread credential phishing campaign using open redirector links.
Attackers use these links alongside social engineering techniques in emails. The links redirect victims to a legitimate Google reCAPTCHA page leading to a fake login page where credentials are then stolen.
The Microsoft 365 Defender Threat Intelligence Team has published a blog on the issue.
The NCSC has produced guidance on how to spot the most obvious signs of a scam, and what to do if you’ve already responded. They also recommend forwarding emails that you’re unsure about to the Suspicious Email Reporting Service (SERS) at firstname.lastname@example.org.
As of 31st July 2021, SERS had received more than 6,900,000 reports, with the removal of more than 55,300 scams and 105,000 URLs.
Report all Fraud and Cybercrime to Action Fraud by calling 0300 123 2040 or online. Forward suspicious emails to email@example.com. Report SMS scams by forwarding the original message to 7726 (spells SPAM on the keypad).