Comprehensive guides on protecting email accounts and infrastructure from cyber threats. Covers email authentication protocols like SPF, DKIM, and DMARC, encryption best practices, spam filtering, and organizational policies that reduce the risk of email-based attacks.
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In May 2025, the FBI's Internet Crime Complaint Center reported that business email compromise — a sophisticated form of fake mail — accounted for over $2.9 billion in adjusted losses in 2023 alone. That number has only grown. I've personally worked cases where a single convincing email
In January 2024, a finance employee at British engineering firm Arup transferred $25 million to threat actors after joining a video call with what appeared to be the company's CFO and other colleagues — all of them deepfake recreations. The attack started the way most do: with a phishing
The Email That Cost MGM Resorts $100 Million In September 2023, a single social engineering attack — starting with a phone call but rooted in the same deception principles as phishing emails — led to a breach at MGM Resorts that cost the company over $100 million. The threat actors behind the
In January 2024, a finance employee at engineering firm Arup wired $25 million to criminals after joining a video call with what appeared to be the company's CFO and several colleagues. Every person on that call was a deepfake. The attack started the same way nearly all of
In May 2024, the FBI's Internet Crime Complaint Center reported that business email compromise — a category built almost entirely on fake emails — accounted for over $2.9 billion in adjusted losses in a single year. That figure dwarfed ransomware losses by a factor of nearly 50. And those
The Fake Invoice That Drained $1.4 Million In early 2025, the FBI's Internet Crime Complaint Center reported that business email compromise — the category that includes PayPal phishing attacks — generated over $2.9 billion in adjusted losses in 2023 alone. That number hasn't slowed down. One
160 Billion Spam Emails a Day — and Your Inbox Isn't Immune In 2024, the Verizon Data Breach Investigations Report confirmed what security professionals have been saying for years: email remains the primary initial access vector for data breaches. Over 90% of cyberattacks start with some form of malicious
In March 2024, a finance employee at a multinational firm in Hong Kong wired $25.6 million to threat actors after joining a video call that appeared to feature the company's CFO. The deepfake was convincing, but the attack started with something far simpler — a phishing link embedded
In March 2025, the FBI's Internet Crime Complaint Center reported that spoofing-related fraud accounted for billions in losses across American businesses and individuals. Every major data breach investigation I've worked on in the past five years started the same way — someone trusted something that wasn'
A Legitimate DocuSign Email That Steals Your PayPal Credentials In November 2024, Avanan researchers documented a wave of attacks where threat actors sent phishing emails through DocuSign's actual platform — not spoofed emails, but real DocuSign notifications. The documents inside impersonated PayPal invoices requesting payment authorization for hundreds or
