What is Cyan?
Cyan Network Security provides URL categorization and threat intelligence embedded in telecoms and ISP-level filtering infrastructure. Their technology powers content filtering, parental controls, and malicious site blocking inside mobile network operators and internet service providers across Europe, the Middle East, and other regions. Cyan's classifications are applied at the carrier level, before traffic reaches the user's device.
Why Cyan flags legitimate domains
- Cyan's URL categorization engine classified your domain as malicious, phishing, or harmful
- Your domain appeared in threat intelligence feeds aggregated by Cyan's security platform
- A subdomain or path on your site was identified as serving restricted content
- Your domain was associated with a campaign observed by Cyan's carrier network partners
- Newly registered domain signals or DNS configuration matched high-risk patterns in Cyan's model
What a listing means for your business
A Cyan flag means your domain can be blocked at the mobile carrier or ISP level for millions of subscribers. Unlike browser-level warnings, carrier-level blocks are invisible and total. Users receive no explanation and have no way to override the block.
How BrandsDefender gets you delisted
We verify that your domain is clean, prepare the evidence Cyan needs, file the false positive dispute through the right channel and follow up until the flag is removed. No cure, no pay.
Frequently asked questions
Which carriers use Cyan Network Security filtering?
Cyan works with mobile network operators and ISPs across Europe and the Middle East. Their filtering technology is embedded in carrier infrastructure. The specific operators are confidential, but coverage is significant in relevant regions.
Can users bypass a Cyan carrier-level block?
Unlike browser-level security warnings, carrier-level blocks cannot be bypassed by the end user. The connection is filtered before it reaches their device. Removal through Cyan's process is the only solution.