Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

As email compromise attacks increase, analysis of tactics provides context on how organizations need to evolve their defenses.

An increasing number of phishing campaigns from several threat groups are being tracked as they leverage legitimate Cloudflare services as part of account compromise attacks. Security analysts at Netskope take an expository look at the misuse of Cloudflare services for the purpose of enabling phishing attacks that leverage HTML Smuggling and Transparent Phishing tactics. We’ve seen HTML Smuggling attacks for several years, including its continued use this year.

A major botnet operation that controlled an estimated 19 million IP addresses and was responsible for $99 million in illegal gains was shut down this week, and an international law enforcement operation arrested its primary operator. Botnet operations may not be as top of mind as ransomware, but these attacks are still responsible for millions in losses and pose a massive threat to businesses and consumers.

This article investigates why Microsoft 365 is insufficient for email security in today’s digital landscape. Email security is a critical concern for businesses of all sizes. While Microsoft 365 offers a comprehensive suite of tools for productivity and collaboration, relying solely on it for email security might not be sufficient. Here’s why.

Security awareness training (SAT) and simulated phishing works to significantly reduce cybersecurity risk. We have the data, customer testimonials and government recommendations to prove it. Social engineering, especially as enabled by email, text messages, the web and phone calls, is involved in the vast majority of cybersecurity attacks. No other root initial access hacking method comes close.

The Evolution of Email Threats Email has long been a favored vector for cyber attacks. From the early days of simple phishing scams to the more advanced spear-phishing campaigns, email threats have consistently evolved. However, the integration of AI has brought about a paradigm shift in both the complexity and frequency of these attacks. AI-Powered Phishing Phishing attacks have traditionally relied on mass-distribution strategies, hoping to catch a small percentage of victims.

The China-aligned threat actor “Sharp Dragon” is launching spear phishing attacks against government entities in African and Caribbean countries, according to researchers at Check Point. “In recent months, we have observed a significant shift in Sharp Dragon’s activities and lures, now targeting governmental organizations in Africa and the Caribbean,” the researchers write.

The digital supply chain refers to the chain of third-party digital tools, services and infrastructure that your company depends on for a particular first-party service (such as your website or SaaS platform). In an ever-changing digital landscape, supply chains can be brittle with many unseen risks. The nature of supply chain risk is transitive; any part of the often long and complicated digital supply chain can be compromised, causing all components downstream of it to also be compromised.

Fluctuations in consecutive quarterly reports demonstrates that organizations should be worried that their cyber defenses may not be strong enough to stop phishing attacks. I wrote an article back in April of last year about how 1 in 8 emails make it to a user’s Inbox. That number has remained relatively consistent — so much that even the Threat Insights Report for Q1 2024 from HP Wolf Security shows that stat is still accurate. But then there’s the Threat Insights Report for Q4 2023.

Netskope Threat Labs is tracking multiple phishing campaigns that abuse Cloudflare Workers. The campaigns are likely the work of different attackers since they use two very different techniques. One campaign (similar to the previously disclosed Azorult campaign) uses HTML smuggling, a detection evasion technique often used for downloading malware, to hide the phishing content from network inspection.