The Hidden Cyber Security Risks Lurking Inside Your Business: What Most Companies Overlook
- petermunnelly
- Jun 9
- 2 min read

In the world of cyber security, it’s easy to focus on external threats including ransomware gangs, phishing emails, and hackers trying to break into your business from the outside.
But for many businesses, some of the biggest risks are already inside.
Let’s explore the hidden internal risks that many businesses overlook and the steps you can take to stay protected.
Outdated User Accounts
When employees leave or change roles, their old accounts often remain active. These forgotten accounts can easily be exploited by attackers.
How to remain protected
Immediately disable or delete unused accounts
Conduct regular user access audits
Enforce least privilege access by only granting users access to what they need
Poor Passwords
Even with strong firewalls, weak or reused passwords are one of the easiest ways for attackers to gain access.
How to remain protected
Use strong, unique passwords for every system
Implement multi-factor authentication (MFA)
Consider a password manager for your team
Shadow IT
Employees often install apps, cloud services, or software that aren’t approved by your business. This creates gaps in visibility and security.
How to remain protected
Regularly audit systems for unapproved software
Create a clear policy for app approvals
Educate staff on why Shadow IT is risky
Unsecured Backups
Backups are critical for recovering from ransomware and data loss, but many companies leave backups exposed or improperly protected.
How to remain protected
Store backups offline or on isolated networks
Encrypt backup data
Test backups regularly to ensure they work
Lack of Employee Awareness
Your staff are often the first target for phishing or social engineering attacks.
How to remain protected
Run regular security awareness training
Conduct phishing simulations
Make it easy for staff to report suspicious emails
For many businesses, the first step toward better security is educating your team in what to be aware of and what to look out for and report.
At ONSec, we help businesses of all sizes assess their risks, get certified, and build stronger IT Security processes.