Spam isn’t just in your email: How a rogue calendar invite could disrupt your workday

A new type of cyber threat is wreaking havoc on workplaces worldwide: calendar invites that appear innocuous but are actually malicious. Originating from seemingly familiar contacts, these invites, once accepted, inundate not only the victim’s calendar but those of their colleagues and even seemingly innocuous roles like office cleaning personnel. This scam, linked to phishing attempts, aims to lure victims into joining fraudulent meetings designed to pilfer sensitive information.

Cybersecurity experts have observed a staggering surge in such attacks. According to Sublime, a cybersecurity firm, calendar-based phishing attacks skyrocketed by 282% in June, surged an additional 338% in July, and an alarming 1,216% in August. Forecasts suggest the rate could skyrocket by a whopping 2,852% by September alone.

While various resources provide guidelines to safeguard against these threats, the core advice remains consistent: vigilance is paramount. Users must meticulously scrutinize their calendar settings, restrict access to calendars, and disable automatic event creation from services like Gmail. The ease with which these attacks occur underscores the importance of adopting a cautious approach, especially for those less tech-savvy.

Sharing this responsibility with trusted advisors, such as IT professionals or cybersecurity experts, can provide additional layers of protection in an increasingly vulnerable digital landscape. Ultimately, staying calm and adhering to security protocols can mitigate the risk of falling victim to these sophisticated calendar-based attacks.