May 2025 has brought a fresh wave of high-profile cyber attacks — and with them, a sharp reminder that even well-established businesses aren’t immune to evolving digital threats. From healthcare organisations to retail giants, this month’s breaches have exposed a worrying truth: many businesses are still underestimating the value of their data — and overestimating their security.

So, what can we take away from this surge in cyber incidents, and what should business owners — especially those running small or growing enterprises — be doing differently?

1. Hackers Aren’t Just Targeting Big Corporations

A common misconception is that cyber criminals only go after big fish. But in reality, smaller businesses are often seen as low-hanging fruit — lacking the resources, infrastructure, or protocols to properly defend their data.

One breached business this month had no dedicated IT team, and only basic off-the-shelf antivirus software. The result? Sensitive customer information was leaked, operations were frozen for three days, and trust was severely damaged.

Takeaway: If your business holds client information, payment details, or intellectual property — you’re a target. Size doesn’t matter; vulnerability does.

2. Outdated Systems Are Easy Entry Points

Several breaches in May were linked to unpatched software or outdated systems — simple gaps that offered easy access for attackers.

Software updates can feel like a nuisance, but skipping them is like leaving your front door unlocked overnight. Cyber criminals actively look for these weaknesses and exploit them with minimal effort.

Takeaway: Regularly update your software, plugins, and security tools. Automate where possible, and conduct a full review of your tech stack at least once a quarter.

3. Human Error Is Still the Weakest Link

Even the best tech can’t save you from a misplaced click. Phishing attacks — cleverly disguised emails that trick employees into giving up passwords or downloading malware — were behind several of this month’s most damaging breaches.

The scariest part? Many of these attacks looked convincingly legitimate.

Takeaway: Invest in staff training. A well-informed team is one of your strongest lines of defence. Encourage a “think before you click” culture, and consider simulated phishing tests to identify weak spots.

4. Backups and Response Plans Are Non-Negotiable

In one case, a company without a backup system paid a five-figure ransom to regain access to their data. Those with secure, up-to-date backups? They were back online in hours — no ransom, no panic.

Takeaway: Have a clear incident response plan and test it. Regular, encrypted backups (stored offsite or in the cloud) can save your business from financial and reputational ruin.

5. Cybersecurity Isn’t a One-Time Fix — It’s Ongoing

One of the biggest lessons this month is that cybersecurity isn’t a box you tick once. It’s a continuous, evolving process.

New threats emerge every month. What worked in 2024 may be outdated now. And as your business grows, so do the stakes.

Takeaway: Conduct regular audits, seek expert advice, and treat cybersecurity like any other core part of your business strategy — not an afterthought.

Final Thoughts

If May’s breaches have shown us anything, it’s that no business is invincible — but every business can be prepared.

Start with the basics: strong passwords, multi-factor authentication, software updates, and staff awareness. Then build on that foundation with regular reviews, a tested response plan, and professional support where needed.

In 2025, data is more than just information — it’s your reputation, your operations, and your customers’ trust.

Ask yourself: if an attack happened tomorrow, would you be ready? Secure your business today.