Learning Center

Cybersecurity

Understanding threats, protecting your business, and implementing practical security measures that actually work.

18 Questions Answered

What is DMARC and why is email authentication critical for my business?

84% of domains lack DMARC protection. Learn how SPF, DKIM, and DMARC prevent email spoofing and why major providers now require it.

7 min read centrexIT Team

How do I secure my business WiFi network?

Your WiFi is an open door attackers love to exploit. Learn practical steps to secure your wireless network from rogue access points, evil twins, and more.

7 min read centrexIT Team

What is DNS filtering and does my business need it?

79% of cyberattacks use DNS. Learn how DNS filtering blocks malicious websites before they load, protecting your business at the network level.

7 min read centrexIT Team

What is network segmentation and why should my business care?

60% of breaches involve lateral movement. Learn how network segmentation contains attacks, protects sensitive data, and is often required for compliance.

7 min read centrexIT Team

Can attackers bypass multi-factor authentication?

MFA blocks 99% of automated attacks, but determined attackers have found ways around it. Learn about MFA fatigue, SIM swapping, and how to harden your MFA.

7 min read centrexIT Team

What happens in the first 72 hours after a cyberattack?

A practical timeline of what happens - and what you should do - in the critical first 72 hours after discovering a cyberattack on your business.

9 min read centrexIT Team

What is business email compromise (BEC) and why is it the costliest cybercrime?

BEC caused $2.7 billion in losses in 2024 alone. Learn how these attacks work, why they bypass technical defenses, and how to protect your business.

8 min read centrexIT Team

What is zero trust security and does my small business need it?

Plain-English explanation of zero trust security, why it matters for small businesses, and practical steps to implement it without a massive overhaul.

7 min read centrexIT Team

How do I protect my business from phishing attacks?

How modern phishing works, why traditional defenses aren't enough, and the layered approach that actually protects your business.

8 min read centrexIT Team

Is security awareness training really worth it for my employees?

The data behind security awareness training: ROI, effectiveness stats, and what makes the difference between compliance checkbox and real protection.

7 min read centrexIT Team

What's the difference between EDR and traditional antivirus?

A clear breakdown of EDR vs traditional antivirus: what each does, why antivirus alone isn't enough, and when your business should upgrade to EDR.

7 min read centrexIT Team

Our passwords were found on the dark web - what should we do?

Step-by-step response plan when your business passwords appear on the dark web. Learn immediate actions, long-term fixes, and how to prevent credential attacks.

6 min read centrexIT Team

What security controls do I need for cyber insurance?

The specific security controls cyber insurance carriers require, how to prepare for applications, and what happens if you don't qualify.

7 min read centrexIT Team

How do I securely onboard and offboard employees?

Complete checklists for securely onboarding and offboarding employees. Protect your business from data theft, lingering access, and compliance violations.

7 min read centrexIT Team

Do small businesses really need cybersecurity?

43% of cyberattacks target small businesses. Learn why SMBs are prime targets and the minimum security every business needs.

7 min read centrexIT Team

What is ransomware and how do I protect my business?

Plain-English explanation of ransomware, how attacks happen, and the practical steps to protect your business and recover if attacked.

8 min read centrexIT Team

Is free antivirus enough for my business?

Honest comparison of free vs. paid antivirus for businesses. Learn where free falls short and when you need to upgrade your protection.

6 min read centrexIT Team

How do I know if my business has been hacked?

10 warning signs your business may be compromised. Learn what to look for and what to do if you suspect a breach.

7 min read centrexIT Team

Need Help with Your IT Decisions?

Our team is here to answer your questions and help you find the right solutions.