Why This Happens
To keep systems and personal information safe UNC‑CH systems use security checks when you try to log in. You may already be familiar with things like CAPTCHA tests or one‑time email codes.
Another common security step is checking where the login is coming from. If the system thinks the login is coming from a high‑risk or suspicious source, it may block the attempt to protect your account and University systems.
Privacy Apps Can Trigger Blocks
If you’re using privacy tools like TOR, some non-UNC VPNs, or proxy services, the University’s systems may see your login as risky. These services hide your real location and internet provider, which makes it harder to confirm that the login is coming from you.
Because these same tools are often used by attackers to hide their identity, login attempts from them are more likely to be blocked, even if your intentions are legitimate.
What Are TOR and Other Anonymizing Services?
TOR and similar services are designed to keep people anonymous online by routing their internet traffic through other computers around the world. Many third‑party VPNs and proxy services work in a similar way by hiding your real IP address and location.
These are not the same as the University’s VPN. The UNC VPN is designed to securely confirm your identity and device before giving you secure and encrypted access to campus systems.
Why the University Blocks Them
Attackers commonly use anonymizing services and virtual private servers to avoid detection. To reduce the risk of unauthorized access, the University may block login attempts that come from these services.
What You Can Do
If you’re having trouble signing in:
- Turn off TOR, third‑party VPNs, virtual private servers, or proxy services
- Try connecting using your regular home or cellular internet
- Use the official UNC VPN if off campus
Doing these usually resolves the issue quickly