Tag

Network Security

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.

posts

Zero Trust Implementation

Zero Trust Implementation: A Practical Guide for 2022

The Colonial Pipeline Made "Never Trust, Always Verify" a Boardroom Priority In May 2021, a single compromised password shut down the largest fuel pipeline in the United States. Colonial Pipeline paid a $4.4 million ransom — and the real costs ran far deeper. The attack exploited a legacy

Carl B. Johnson Jan 15, 2022 7 min read
VPN Best Practices

VPN Best Practices: What Actually Protects You in 2022

The Pulse Secure Breach Should Have Been Your Wake-Up Call In April 2021, CISA issued an emergency directive after threat actors exploited vulnerabilities in Pulse Connect Secure VPN appliances to compromise federal agencies and defense contractors. Attackers maintained persistent access for months before anyone noticed. The tool that was supposed

Carl B. Johnson Jan 06, 2022 7 min read
Remote Desktop Security Risks

Remote Desktop Security Risks: What Attackers See

An Open Door You Didn't Know You Left Unlocked In August 2021, the FBI and CISA issued a joint advisory warning that threat actors exploiting Remote Desktop Protocol (RDP) was the single most common initial access vector in ransomware attacks. Not phishing emails. Not zero-day exploits. RDP. The

Carl B. Johnson Jan 06, 2022 7 min read
Man in the Middle Attack

Man in the Middle Attack: How Hackers Steal Data

In January 2021, the FBI warned that cybercriminals were actively exploiting telecommuters by intercepting unencrypted network traffic — a textbook man in the middle attack. The shift to remote work didn't just expand the attack surface. It handed threat actors a golden opportunity to sit between employees and corporate

Carl B. Johnson Sep 03, 2021 7 min read
DNS Spoofing Attack

DNS Spoofing Attack: How Hackers Hijack Your Traffic

In April 2018, attackers hijacked the DNS records for Amazon's Route 53 service, redirecting traffic meant for MyEtherWallet.com to a malicious server in Russia. Users who typed the correct URL into their browsers still landed on a fake site. Within two hours, attackers stole roughly $150,000

Carl B. Johnson Sep 03, 2021 7 min read
Spoofing

Spoofing Attacks: How Hackers Impersonate Trust

In July 2020, a seventeen-year-old in Florida used phone-based spoofing and social engineering to compromise internal Twitter tools, hijacking the verified accounts of Barack Obama, Elon Musk, Jeff Bezos, and Apple. The attackers impersonated IT staff during phone calls to Twitter employees, spoofing caller IDs to appear legitimate. Within hours,

Carl B. Johnson Aug 25, 2021 8 min read
Zero Trust Security Model

Zero Trust Security Model: Why Perimeter Defense Is Dead

In July 2020, Twitter disclosed that attackers had compromised 130 high-profile accounts — including Barack Obama, Elon Musk, and Apple — by socially engineering their way past internal employees. The attackers didn't breach a firewall. They didn't exploit a zero-day vulnerability. They simply convinced insiders to hand over

Carl B. Johnson Dec 12, 2020 7 min read
Zero Trust

What Is Zero Trust? A Practical Guide for 2021

The SolarWinds Hack Just Proved Your Perimeter Is an Illusion As I write this in December 2020, we're watching the SolarWinds supply chain attack unfold in real time. Threat actors — likely nation-state sponsored — compromised a trusted software update to infiltrate the U.S. Treasury, the Department of Commerce,

Carl B. Johnson Dec 12, 2020 7 min read
Zero Trust Network Access

Zero Trust Network Access: A Practical Guide for 2021

The SolarWinds Breach Just Proved Your Perimeter Is Dead As I write this in December 2020, we're watching one of the most devastating supply chain attacks in history unfold. The SolarWinds breach — disclosed just days ago — compromised U.S. government agencies and major corporations by exploiting trusted software

Carl B. Johnson Dec 12, 2020 7 min read
Zero Trust Implementation

Zero Trust Implementation: A Practical Guide for 2021

When Twitter disclosed in July 2020 that attackers had hijacked 130 high-profile accounts — including Barack Obama, Elon Musk, and Apple — the root cause wasn't some exotic zero-day exploit. It was social engineering. Attackers manipulated employees, gained access to internal tools, and moved laterally through systems that trusted them

Carl B. Johnson Dec 12, 2020 7 min read