IT Security Essentials for New Startups

You've registered the company, pulled a team together, and you're focused on getting the thing moving. IT security is probably not what's keeping you up at night right now.

But here's the problem: startups get targeted precisely because they're new. Limited infrastructure, valuable data, a team too busy to notice something's off. Cyber criminals know this. According to the UK Government's own research, 43% of UK businesses experienced a cyber attack or breach in the past year, and phishing remains the most common way in by a considerable distance. If you want to understand how fraud specifically affects limited companies, our guide on protecting your company from fraud covers the most common scams to watch out for."

The basics aren't complicated. They just need to actually be in place before something goes wrong. Here's 5 essentials that can help keep you and your business safe.

Key Takeaways

• Phishing is the most common cyber threat facing UK businesses. Teaching your team to recognise it is one of the most effective defences you have.
• Strong, unique passwords and two-factor authentication are two of the simplest things you can do right now that will make a real difference.
• Anti-virus software needs to be on every device people use for work, including personal laptops and phones used remotely, and it needs to stay updated.
• A VPN adds meaningful protection when connecting to external networks, which matters more as teams work remotely.
• Regular, automatic backups mean a breach or hardware failure doesn't have to be the end of everything.
• Keep access permissions tight. The fewer people who can reach sensitive data, the less damage a single compromised account can do.
• AI has made phishing attacks much harder to spot. Awareness needs to keep pace with that.
• The UK government's Cyber Essentials scheme is worth knowing about. It's practical, affordable, and some larger clients now require their suppliers to hold it.

1. Install Anti-Virus Software on Every Device

This one sounds obvious, but it's often done halfway. Anti-virus gets installed on the main office machine and then nobody thinks about it again. Meanwhile the team is working from laptops and phones that connect to all sorts of networks with nothing running in the background.

Every device used for work needs it. Not just the desktop in the corner. Laptops, tablets, mobiles, all of it. And it needs to stay updated, because software that's a few months behind on patches is considerably less useful than software that's current.

Free options exist, but for a business context it's worth paying for a reputable commercial product. The coverage is broader, there's actual support if something goes wrong, and enterprise tools tend to handle things like ransomware more effectively than the freebies do.

2. Use a VPN

A VPN creates an encrypted connection between your device and whatever you're connecting to online. Anything passing through it is unreadable to someone trying to intercept it. Your IP address, your passwords in transit, sensitive data: all of it gets an extra layer of protection.

This matters more than people think, particularly for remote teams. Public wifi in coffee shops, hotels, and co-working spaces is easy to eavesdrop on. A VPN sorted on every work device removes most of that risk quickly.

Look for a business-grade service with a clear no-logging policy and decent independent reviews. It doesn't need to be expensive to be effective.

3. Get Your Passwords Under Control

The old advice of eight characters with a capital letter and a symbol is outdated. The NCSC now recommends using three random words as a passphrase instead. Something like "carpet-moon-biscuit" is longer, harder to guess, and easier to remember than "P@ssword1". Aim for at least 12 characters.

Every account needs its own password. Reusing the same one across platforms means one compromised account can unlock everything else. A password manager handles this without anyone having to memorise dozens of combinations.

Two-factor authentication should be turned on for every account that offers it, especially email, banking, and anything that touches customer data. It adds 30 seconds to logging in and stops the majority of credential-based attacks getting anywhere.

4. Train Your Team to Spot Phishing

Phishing was behind the overwhelming majority of cyber crimes experienced by UK businesses last year, and AI has made it harder to spot. Attackers can now generate convincing, personalised messages at scale that look nothing like the obvious fakes of a few years ago.

The classic red flags still apply: urgency in the message, email addresses that almost match but don't quite, unexpected requests for passwords or payment details, links that go somewhere unexpected. But the fakes are increasingly good enough to catch careful people out.

Regular conversation beats a one-off training session. And if someone does click something suspicious, the response should be to report it immediately rather than quietly hope for the best.

5. Back Up Your Data

Backups won't stop an attack, but they're the difference between a bad day and a genuinely catastrophic one. If ransomware encrypts your files or hardware fails, a recent backup means you restore and carry on rather than rebuild from nothing.

Back up at least daily, to somewhere separate from the main system. Cloud backups and off-site copies are considerably more resilient than an external drive sitting next to the machine it's backing up. Most cloud services have automatic backup built in. Set it up, and test the restore process at some point before you actually need it.

FAQs

Why do cyber criminals go after startups?

Startups tend to have limited security infrastructure, a team that's too stretched to notice something unusual, and often valuable data. That's an appealing combination. Larger businesses are harder targets because they have dedicated teams and more mature defences. Startups are easier, and attackers know it.

What is phishing and why is it still such a problem?

Phishing is when someone sends a message pretending to be a trusted contact or company to trick the recipient into handing over credentials, money, or sensitive data. It works because it targets people rather than software, and people are harder to patch than systems. AI has made phishing emails significantly more convincing in recent years, which means the old advice of "just look for spelling mistakes" isn't enough on its own anymore.

How often should I back up data?

Daily as a minimum, more often if your systems are business-critical. Store backups in more than one place, with at least one copy off-site or in the cloud. And test the restore process occasionally. It's worth knowing your backup actually works before you need it.

Is free anti-virus software good enough?

For personal use, often yes. For a business, particularly one handling customer data, a paid product gives you better coverage, real support, and more reliable updates. The cost of a breach tends to dwarf the cost of decent software pretty quickly.

Do I actually need two-factor authentication?

Yes. It means that even if someone gets hold of your password, they still can't get into the account without the second factor. It should be turned on for every account that supports it, particularly email, banking, and anything customer-facing.

How do I know if my business has been hacked?

Warning signs include unusual login activity, systems running slowly without explanation, files that have changed or can't be opened, contacts receiving emails you didn't send, or unexpected outgoing network traffic. If something feels off, treat it as suspicious and investigate. Report incidents to Action Fraud or the NCSC.

Does a startup need a formal cyber security policy?

Even a basic one is worth having. It sets out expectations around passwords, device use, data handling, and what to do if something goes wrong. The NCSC website has free guidance and templates that make it straightforward to put something together without starting from scratch.