Covers strategies, tools, and best practices for protecting computer networks from unauthorized access, cyberattacks, and data breaches. Topics include firewalls, intrusion detection systems, network segmentation, and monitoring techniques that help organizations maintain secure and resilient infrastructure.
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In January 2023, T-Mobile disclosed that a threat actor had been siphoning data from 37 million customer accounts since November 2022 — through a single exploited API. The attacker moved laterally for weeks without triggering alarms. If you've ever wondered what is zero trust and why the entire industry
The VPN Is Dead. The Breach That Proved It. In May 2023, a threat actor used stolen VPN credentials to breach a major U.S. government contractor, moving laterally across the network for weeks before detection. The attacker didn't exploit some exotic zero-day. They logged in with a
The Breach That Proved Perimeter Security Is Dead In January 2023, T-Mobile disclosed that a threat actor had been siphoning data from 37 million customer accounts since late November 2022 — by exploiting a single API. The attacker was already inside the network, moving laterally, harvesting names, emails, phone numbers, and
In May 2023, Barracuda Networks disclosed that a zero-day vulnerability in its VPN appliances had been actively exploited since October 2022 — giving threat actors seven months of undetected access to customer networks. CISA issued an emergency directive. The patch wasn't enough; Barracuda told customers to physically replace compromised
In September 2023, the FBI and CISA issued a joint advisory warning that the Play ransomware group had compromised over 300 organizations — and their most common initial access vector was exposed Remote Desktop Protocol. That's not a sophisticated zero-day exploit. That's a login screen sitting wide
In January 2023, the FBI's Internet Crime Complaint Center (IC3) continued to flag business email compromise — often powered by man in the middle attack techniques — as the costliest cybercrime category, responsible for over $2.7 billion in reported losses in 2022 alone. That number isn't inflated
In April 2018, attackers hijacked the DNS servers used by MyEtherWallet and redirected users to a phishing site hosted in Russia. The entire attack lasted roughly two hours. In that window, victims lost around $17 million in cryptocurrency — simply because their browsers resolved a legitimate domain name to a malicious
In May 2021, a single compromised password shut down the Colonial Pipeline and triggered fuel shortages across the U.S. East Coast. The attackers used a legacy VPN account with no multi-factor authentication — a textbook example of what happens when an organization trusts its perimeter instead of verifying every access
In May 2021, a single compromised password shut down the Colonial Pipeline and triggered fuel shortages across the eastern United States. The attackers used a legacy VPN account that had no multi-factor authentication. One credential. No additional verification. That's all it took to paralyze critical infrastructure. If you&
In May 2021, Colonial Pipeline paid a $4.4 million ransom after a single compromised VPN credential gave attackers the keys to the kingdom. One password. No multi-factor authentication. No segmentation between IT and operational technology networks. The attackers from the DarkSide group walked through a flat network like it
