Check Point Email Security Blog Attack Briefs (23)


Hidden Meaning: Using Obfuscation to Fool Natural Language Processing

A rapidly increasing attack campaign is hitting inboxes.

Read more

We Shouldn't Transfer: Getting End-Users to Give Over Credentials

You may have heard about the recent Accellion breach. Accellion, a file-sharing app, was breached and now tons of universities and corporations have been hit. Major ...

Read more

When a Legitimate Pension Fund Uses Fraudulent Phishing Tactics

Avanan researchers have discovered an interesting “marketing” campaign from a legitimate company that leverages pension fund fraud tactics normally used in phishing ...

Read more

Can I Have Some More? Blatant Financial Scam Makes Way to Inboxes

Avanan researchers have uncovered a widespread financial scam attack. The attack aims to get sensitive bank and financial information from the victim.

Read more

ZeroFont Phishing: Three Years Later, the Attack Form is Still Out There

Back in 2018, Avanan uncovered an attack we called ZeroFont phishing. The idea is that hackers insert hidden words into the text with a font size of zero. The recipi...

Read more

Flipping Out: Hackers Hijack Legitimate File Service to Reach Inboxes

Avanan researchers have uncovered a specific attack that was seen 282 times across 18 different environments in the past two weeks. This attack leverages Flipsnack, ...

Read more

Bad Check: Another Malicious Invoice Gets Through

Another day, another invoice scam. This time the fake invoice is actually a malicious HTML file. Despite this being a very basic credentials harvesting attack it was...

Read more

Invoiced: When an Ask For Payment Is an Invitation for Malware

Invoice-related spam is common. It doesn't mean, though, that everyone stops it.

Read more

Novel Tax Scam Utilizes Spoofed IRS Address to Defraud Users

Tax season is always ripe with attacks, ranging from the simple to the sophisticated. This particular attack showcases a truly well-crafted and deceptive phishing em...

Read more

The Tax Hack Cometh: Open Season for Tax-Based Attacks

With tax season around the corner, we’re seeing a very expected uptick in tax-related malicious emails. This particular email was malware sent from a domain register...

Read more

14-Day Free Trial – Experience the power and simplicity of Avanan Cloud Security.   Start Free Trial