The UK’s Cyber Siege: State-Sponsored Threats and Hacker Groups in 2025

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The UK’s Cyber Siege: State-Sponsored Threats and Hacker Groups in 2025


I Used to Think Hackers Were Lone Wolves — Then 2025 Hit

TBH, I thought cyber threats were mostly ransomware gangs in hoodies. But this year? The UK’s under full-scale digital siege — and the attackers aren’t just criminals. They’re state-backed, well-funded, and everywhere.

I was reviewing logs for a client when I spotted traffic from a known ShinnyHunters C2 server. Not a script kiddie. Not a misconfigured firewall. A professional-grade intrusion attempt. That’s when it clicked: this isn’t crime — it’s warfare.

And the UK? We’re on the front line.


The Big Four: State-Funded Hacker Groups Targeting the UK

The NCSC’s 2025 Annual Review confirms what many suspected: China, Iran, Russia, and North Korea are the primary sources of state-sponsored cyber threats.

But they don’t always attack directly. Instead, they inspire, support, or tolerate proxy groups that do the dirty work — often under the guise of hacktivism.

1. China: APT40 & The Long Game

Chinese state-backed groups like APT40 focus on industrial espionage and critical infrastructure access.

  • Targets: Defence, maritime, telecommunications
  • Tactics: Spear phishing, supply chain compromises
  • UK Impact: Repeated probing of energy and transport systems

China isn’t rushing. They’re planting backdoors for 2030, not 2025.

2. Iran: Charming Kitten & Cyber Espionage

Iranian groups like Charming Kitten (APT35) target diplomats, journalists, and academics.

  • Tactics: Fake login pages, credential harvesting
  • Recent Move: Targeted UK-based researchers working on Middle East policy
  • Why It Matters: They’re not stealing data — they’re mapping influence networks

Russia’s Cozy Bear (APT29) is back — but so are pro-Kremlin “patriotic” groups like NoName057(16).

  • NoName057(16): Launched DDoS attacks on UK, US, and NATO sites in 2025
  • Tactic: “Digital Article 5” — attack one, all respond
  • Reality: Likely state-tolerated, if not directly funded

The NCSC says Russia’s role in inspiring informal hacktivist groups is a major driver of the UK’s 50% attack surge.

4. North Korea: Lazarus Group & Financial Theft

The Lazarus Group remains active, targeting UK fintech and crypto firms.

  • Goal: Fund the regime
  • Method: Ransomware, exchange heists
  • 2025 Trend: More AI-assisted social engineering

They’re not subtle. But they’re effective.


Notorious Hacker Groups: Beyond the Nation-State

While state actors dominate, ideologically driven collectives are causing chaos.

ShinnyHunters: The Silent Data Thieves

  • Specialty: Stealing sensitive business data from UK firms
  • Targets: Legal, financial, and consulting sectors
  • Tactic: Long-term access, slow exfiltration
  • Why They’re Dangerous: They don’t encrypt. They leak or sell — quietly

I’ve seen their work. No ransom note. Just a LinkedIn post with your internal emails.

Scattered Spider: The Social Engineers

  • Known For: SIM-swapping, phishing, and insider manipulation
  • UK Victims: Marks & Spencer, Co-op, Harrods
  • US Spread: Now hitting US retailers
  • Google’s Warning: They “focus on a sector, then move on” — fast

They don’t need zero-days. They just call your helpdesk and lie.


Companies Affected in 2025: A Growing List

The NCSC handled 429 incidents from August 2024 to September 2025 — more than double the previous year.

Major UK Companies Hit

CompanyAttack TypeImpact
Jaguar Land RoverCyber-facilitated fraudOperational disruption
Marks & SpencerScattered Spider breachData exposure, reputational damage
Co-op GroupScattered Spider breachStore systems slowed, customer trust eroded
Legal Aid AgencyRansomwareCase processing delays

And it’s not just big names. The Cyber Security Breaches Survey 2025 shows 54% of UK businesses suffered phishing attacks — up from 45% in 2024.


The Real Problem: We’re Not Ready

The UK government calls it a “call to arms”.

But too many firms still treat cybersecurity as an IT issue, not a boardroom priority.

  • Phishing: 54% of businesses hit
  • Ransomware: 7% of businesses (up from 3%)
  • DDoS: 2% — but rising fast

And the NCSC warns AI will make attacks smarter by 2027.

IMO, we’re patching holes while the dam cracks.


Final Thoughts: Wake Up or Get Owned

The threat isn’t coming. It’s here.

From ShinnyHunters to Russian proxies, the UK is a battleground.

So what now?

  • Assume you’re a target — because you are
  • Train your staff — they’re the weakest link
  • Patch relentlessly — no excuses

This isn’t just about data. It’s about national resilience.

“The prudent see danger and take refuge, but the simple keep going and pay the penalty.”
— Proverbs 22:3, ESV


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