By ThreatListPro Security Team · Published February 27, 2026 · Last verified: February 28, 2026
Geo-blocking and IP blocklists are both firewall-level defenses against VPN brute force attacks, but they work in fundamentally different ways. Geo-blocking uses a sledgehammer approach, denying all traffic from entire countries. ThreatListPro uses a scalpel, blocking only the specific IP addresses that have been observed attacking VPN portals. The trade-offs between these approaches are significant.
Quick Comparison
| Feature | ThreatListPro | Geo-Blocking |
|---|---|---|
| Blocks Legitimate Users | No | Yes (entire countries blocked) |
| Handles Distributed Attacks | Yes | No (attacks from allowed countries pass through) |
| Specificity | Individual malicious IPs | Entire country IP ranges |
| False Positives | Near zero | High (blocks travelers, VPN users, remote workers) |
| Updates | Weekly automated | Manual country list management |
| Price | $9.99/mo | Free (built into firewalls) |
| Best For | Precise threat blocking | Reducing bulk traffic from unused regions |
The Problem with Geo-Blocking
Geo-blocking is appealing because it is free, easy to understand, and reduces attack volume dramatically. But it comes with serious limitations that organizations often discover only after deployment.
False Positives Are Inevitable
When you block an entire country, you block every legitimate user in that country. This includes:
- Traveling employees. A sales executive visiting a blocked country cannot connect to the corporate VPN. They call the helpdesk, which whitelists their hotel IP, creating a security exception that persists long after the trip.
- Remote workers. Organizations with globally distributed teams cannot use geo-blocking without blocking their own employees. A developer working from Portugal or a support engineer in the Philippines gets locked out.
- Business partners and vendors. Third-party contractors, auditors, and partners in blocked countries lose access to VPN-protected resources.
- Commercial VPN users. Employees using personal VPN services for privacy may route through blocked countries, generating helpdesk tickets.
Attackers Bypass Geo-Blocking Easily
Sophisticated attackers do not launch campaigns from their home country. They use:
- Cloud VPS in your country. A $5/month VPS on AWS, Azure, or DigitalOcean in the US bypasses all geo-blocking rules targeting foreign countries.
- Compromised devices in allowed countries. Botnets consist of infected machines worldwide, including in every country on your allow list.
- Residential proxies. Services sell access to residential IP addresses in any country, making attack traffic appear domestic.
When to Choose ThreatListPro
- You have users or partners in multiple countries. Geo-blocking is impractical when your workforce is global. ThreatListPro blocks only verified attackers regardless of their location.
- You need low false positives. Every IP on the ThreatListPro list was captured attacking a VPN honeypot. There is no risk of blocking a legitimate user's IP address.
- Attacks come from allowed countries. If you are already geo-blocking and still seeing brute force traffic, the remaining attacks are coming from cloud infrastructure and botnets in your allowed countries. ThreatListPro catches these.
- You want a set-and-forget solution. ThreatListPro updates weekly with new attacker IPs. Geo-blocking requires manual review whenever your organization's geographic needs change.
When Geo-Blocking Is Useful
- All your users are in one country. If you are a small, domestic-only organization with no international travel, blocking all foreign countries eliminates the majority of attack traffic for free.
- You want a first layer of defense. Geo-blocking can reduce attack volume by 60-80%, making it a useful complement to ThreatListPro. Block the countries where you have zero users, then let ThreatListPro handle the rest.
- You have zero budget. Geo-blocking is built into most firewalls at no additional cost. If budget is truly zero, it is better than nothing.
Best Practice: Use Both Together
The strongest defense combines both approaches. Geo-blocking handles the bulk reduction of attack traffic from regions where you have no business presence. ThreatListPro handles the targeted blocking of specific attacker IPs from everywhere else, including domestic cloud infrastructure that geo-blocking cannot touch.
Recommended layered setup
- Layer 1: Geo-blocking. Block countries where you have zero users or business relationships. This eliminates 60-80% of attack traffic for free.
- Layer 2: ThreatListPro. Block specific attacker IPs from all remaining countries. This catches the 20-40% of attacks that bypass geo-blocking.
- Layer 3: Rate limiting. Limit login attempts per source IP to slow down any attacker that is not yet on either blocklist.
Frequently Asked Questions
Does geo-blocking stop VPN brute force attacks?
Geo-blocking reduces VPN brute force attack volume but does not stop it. It blocks all traffic from selected countries, eliminating attacks from those regions. However, sophisticated attackers use VPS infrastructure and botnets in allowed countries, bypassing geo-restrictions entirely.
Should I use geo-blocking and ThreatListPro together?
Yes. Geo-blocking eliminates bulk attack traffic from countries where you have no users. ThreatListPro catches the remaining attacks from allowed countries by blocking specific malicious IPs. Together, they provide broader coverage than either solution alone.
What are the main problems with geo-blocking?
False positives and incomplete coverage. Geo-blocking blocks all traffic from entire countries, including legitimate travelers, remote workers, and business partners. Meanwhile, it does nothing against attacks from cloud servers and botnets in allowed countries.
Is geo-blocking free?
The feature itself is built into most enterprise firewalls at no additional cost. However, it requires time to configure, ongoing maintenance as business needs change, and incident response when legitimate users are blocked. The hidden labor cost can exceed the price of a purpose-built blocklist service like ThreatListPro at $9.99/month.