October is National Cybersecurity Awareness Month, so it's a good time for owners, managers, and operators to take a fresh look at how they protect their digital infrastructure. That applies to critical infrastructure and to any business that relies on technology to operate.
Cybersecurity can feel intimidating, and the jargon doesn't help. The good news is that strong organizational security comes down to three habits, the three Rs of cybersecurity: Reduce, Replace, and Recover. Here is what each one means and how it helps keep your network secure.
1. Reduce: Shrink Your Attack Surface
Hackers are always hunting for new weaknesses. They also move fast on known weaknesses that organizations haven't fixed yet. Every unpatched vulnerability is an open door.
Reducing means cutting down the number of vulnerabilities an attacker can exploit. Here is how to start:
- Audit your digital infrastructure to find any Known Exploited Vulnerabilities (KEVs).
- Patch them promptly, starting with the ones attackers are already using.
- Use CISA as your reference. The Cybersecurity & Infrastructure Security Agency maintains a free, public Known Exploited Vulnerabilities Catalog you can check your systems against.
Takeaway: You can't fix what you haven't found. Regular audits and timely patching close the doors that attackers walk through most often.
2. Replace: Retire What's No Longer Supported
Every piece of hardware and software has a lifespan. Once it reaches End of Life (EOL), its developer stops supporting it and no longer releases security patches. Any vulnerability discovered after that point stays open for good.
A vulnerability that can't be patched has to be replaced. Here is how to stay ahead of it:
- Watch for EOL announcements. Good vendors publish end-of-support dates in advance so you can plan.
- Check your inventory regularly. Review when each device and application was last updated.
- Confirm active support. If it's been a long time since the last update, find out whether the vendor still supports the product.
- Plan the replacement. If support has ended, start finding a replacement before it becomes an emergency.
Takeaway: Unsupported technology is a risk you can't patch away. Replacing it on your own schedule is far easier than replacing it after an incident.
3. Recover: Be Ready for the Worst
Even with strong defenses, no organization is immune. Cyberattacks are highly disruptive, and businesses without a plan can struggle to recover. A tested recovery plan can greatly limit the damage and downtime.
You'll want to build the plan with your IT team. Two components matter most:
- Reliable backups. Holding data for ransom is a common attacker tactic. With a current, secure backup, you can restore your data without paying a ransom.
- Employee buy-in. Recovery is most effective when it starts early. Every team member should know how to alert IT the moment something looks wrong, so the plan can begin right away.
Takeaway: Backups protect your data, and prepared people protect your time. You need both.
Stay Proactive, Stay Secure
The best approach to cybersecurity is a proactive one. By following the three Rs, you can help keep your organization secure and protect its data and employees from bad actors.
Keep in mind that organizational cybersecurity is not the same as personal cybersecurity. If you'd like to learn how to keep yourself safe online, explore more guides right here on the Lighthouse Hub.
Not sure where your organization stands on the three Rs? Our Harmony team can help you audit, update, and prepare.
Contact Lighthouse IT Solutions to get started.