Cybersecurity
The invisible war fought every second across global networks - and the people on both sides of it.
How Attacks Work
Most attacks exploit one of three things: software vulnerabilities (bugs in code that allow unintended behavior), human psychology (phishing, social engineering), or configuration errors (default passwords, open ports). Zero-day exploits target unknown vulnerabilities before patches exist and sell on dark markets for millions. Advanced Persistent Threats (APTs) quietly infiltrate networks and remain for months gathering intelligence.
Encryption
Modern encryption relies on mathematical problems easy to do but hard to reverse. RSA encryption uses the fact that multiplying two large primes is trivial but factoring the result is computationally infeasible. AES (Advanced Encryption Standard) is symmetric encryption used for most data at rest. HTTPS encrypts all web traffic. The coming quantum computing threat to encryption is why post-quantum cryptography standards are being urgently developed.
Stuxnet - The First Cyber Weapon (2010)
Stuxnet was a sophisticated malware believed created jointly by the USA and Israel specifically to destroy Iranian uranium centrifuges at Natanz. It spread via USB drives, silently spread through networks, identified specific Siemens industrial controllers, and then subtly sabotaged centrifuge speeds while reporting normal operation to operators. An estimated 1,000 centrifuges were destroyed. It was the first publicly known cyberweapon to cause physical destruction and marked a new era of state-sponsored cyberwarfare.
Major State-Sponsored Attacks
Russia's Sandworm group knocked out Ukraine's power grid in 2015 and 2016. The NotPetya malware (2017) caused $10 billion in global damages. China's APT groups have stolen terabytes of intellectual property from Western companies. North Korea's Lazarus Group stole over $1 billion in cryptocurrency to fund its weapons programs. The SolarWinds attack (2020) gave Russian intelligence access to US government networks for months.
Ransomware
Ransomware encrypts a victim's files and demands payment for the decryption key. The Colonial Pipeline attack (2021) shut down fuel supply to the US East Coast for six days; the company paid $4.4 million in Bitcoin. The WannaCry attack (2017, linked to North Korea) spread to 150 countries using an NSA exploit leaked by a hacking group and affected the UK's NHS, disrupting patient care.
Nuclear Infrastructure Threats
Nuclear facilities are high-value targets for cyberattacks. Stuxnet demonstrated this directly. The IAEA has documented multiple attempted intrusions into nuclear plant control systems. Most modern nuclear facilities use air-gapped networks (physically isolated from the internet), but Stuxnet showed that air gaps can be crossed via infected USB drives. The stakes of a successful attack on reactor control systems are uniquely severe.