How to Block Crypto Exchanges on Your Network
Crypto trading on work devices raises questions about compliance, fraud and security. This guide shows how to block exchanges, web wallets and DeFi sites cleanly, while leaving crypto news and research open.
Why organisations block crypto exchanges
The reasons differ sharply between a hedge fund, a school and a hospital. This ledger scores the common drivers by how often they decide the policy in each kind of organisation.
| Driver | What it means | Financial firms | Other businesses | Schools |
|---|---|---|---|---|
| Personal trading rules | Staff with market knowledge must not trade on unmonitored platforms from work systems | |||
| Fraud and scams | Fake exchanges, investment scams and "recovery" services target staff and students | |||
| Ransomware and theft | Blocking exchanges and wallets on servers makes it harder to move stolen funds or pay from inside | |||
| Regulatory expectations | Supervisors expect controls over unregulated platforms and record keeping | |||
| Age limits | Most exchanges require users to be adults | |||
| Productivity | Price watching and trading during work hours |
Rules for regulated firms differ by country and change often. Check the current expectations of your financial regulator and your compliance team before writing the policy.
What a crypto block should cover
"Crypto" covers very different sites. Block by type, so a trading ban does not also block a compliance analyst reading the news. The eight types below cover nearly everything you will see in your logs.
In our data these sites sit in the Cryptocurrency category, with secondary categories where they overlap: Gambling for crypto casinos, Malware / Phishing / Suspicious for fakes. Mining is covered on the cryptomining category page, and regulated finance on financial services.
Major exchange domains
These are the main public domains of large, well-known exchanges. Exchanges run regional sites and many support hosts, and there are hundreds of smaller platforms, so use this list only as a check of your category rule.
| Exchange | Main domain | Note |
|---|---|---|
| Binance | binance.com | Separate regional domains exist, for example for the US |
| Coinbase | coinbase.com | Also runs a separate wallet app |
| Kraken | kraken.com | Exchange and trading platform |
| OKX | okx.com | Exchange and web wallet |
| Bybit | bybit.com | Exchange and derivatives |
| KuCoin | kucoin.com | Exchange |
| Crypto.com | crypto.com | Exchange, app and card |
| Gemini | gemini.com | Exchange; not the same as the Google AI assistant |
| Bitstamp | bitstamp.net | Exchange |
Note that some exchange names match other products, so always block by exact domain, never by brand keyword.
Check how any domain is categorized with the domain lookup tool, or run your proxy logs through bulk categorization to see current crypto use before you block.
Crypto policy by role
A single company-wide block often fails because some teams have a real need. Set the policy per role, then map each role to a directory group on the firewall or filter.
| Role | Exchanges and DeFi | Crypto news and data | Wallet apps and extensions | Reason |
|---|---|---|---|---|
| Trading and investment staff | Block | Allow | Block | Personal trading rules, monitored channels only |
| Compliance and financial crime | Read-only access by exception | Allow | Block | Investigations need to view platforms, not trade |
| Treasury, if the firm holds crypto | Allow approved platforms only | Allow | Approved custody tools only | Business need with dual control |
| Security researchers | Isolated lab network | Allow | Lab only | Threat research on scams and malware |
| General staff | Block | Allow | Block | Fraud and productivity |
| Servers and payment systems | Block | Block | Block | No business reason; reduces ransomware options |
| Students | Block | Allow | Block | Age limits in exchange terms |
| Guest Wi-Fi | Policy choice | Allow | Policy choice | No company data involved |
Crypto scams that reach staff and students
Many organisations start blocking crypto after someone on their network loses money. These scam types appear again and again, and most use fresh domains that a category rule can catch.
Even where trading is allowed, block the scam layer everywhere: phishing, malware, suspicious and newly seen domains carrying crypto content with no history.
How to block crypto exchanges: methods by platform
Choose your platform on the left. Each set of steps assumes you block by category and use the domain list only as a safety net. Most firms use at least three of these layers together.
Router or small office gateway
- Set the router's DNS to a filtering resolver that offers a cryptocurrency category.
- If the router has only a domain block list, add the exchange domains above and accept that smaller platforms will get through.
- Block outbound DNS to other resolvers if the router allows it.
Good for a small office. Not enough for a regulated firm, which needs logging per user.
DNS filter
- Block the Cryptocurrency category for staff policies.
- Block the cryptomining category in every policy, including guests.
- Keep crypto news open, or allow it through the news category.
- Block DNS over HTTPS hosts so browsers use your resolver.
- Use roaming agents on laptops so the block follows them home.
Firewall or secure web gateway
- Set the vendor's cryptocurrency category to block in the web filter profile, scoped to staff groups.
- Block crypto wallet and exchange application signatures in application control, where the vendor provides them.
- Apply a strict rule on server and payment segments: no exchange or wallet traffic at all.
- Log by user for compliance records.
Category names and scope differ.
Microsoft Intune
- Push a web filter agent or DNS profile to managed Windows devices that blocks the exchange and wallet domains.
- Review the installed app inventory for exchange and wallet apps and mark them as blocked in your app policy.
- Use the Edge extension allow list in Intune to stop wallet extensions.
- Block wallet desktop apps with application control.
Google Admin console
- Under Devices, Chrome, Settings, URL blocking, add exchange and wallet domains for the right organisational units.
- Under apps and extensions, block wallet extensions or allow only approved extensions.
- Pair with a DNS filter for the long tail of small exchanges.
MDM for phones and tablets
- Block exchange and wallet apps on supervised iOS and in Android work profiles.
- Allow only approved apps on company phones used by trading or finance staff.
- Push a DNS profile so mobile data passes the same filter.
- Run an app inventory report for existing installs.
Apps, wallets and browser extensions
Crypto is unusual: much of it runs in wallet apps and browser extensions that talk to many services, not to one website. A domain rule alone leaves those open.
Wallet extensions are the biggest blind spot on managed laptops. They sit inside an allowed browser, hold keys locally and can sign transactions on any site the user opens. Treat them like any other unapproved software and keep a short extension allow list.
Browser
- Exchange and DeFi websites blocked by category
- Wallet extensions need an extension allow list
- Fake exchange sites caught by phishing categories
- Block page explains the policy
Apps
- Exchange apps use the same domains on your Wi-Fi
- On mobile data, only MDM applies
- Self-custody wallet apps can connect to many networks
- App inventory shows existing installs
Cryptomining: the part to block everywhere
Whatever your trading policy, mining should not run on your computers. Browser miners and mining malware use your power and hardware for someone else's profit, and often signal a deeper compromise.
See the cryptomining category for scope. Block it on every network, including guests and servers.
VPN bypass and other gaps
Close these routes as well, or the block only affects people who were not trying to get around it. Review them again whenever you change firewall or endpoint vendors.
Rollout plan for regulated firms
Banks, brokers and funds usually need the block to stand up to an audit, not just to work. This sequence produces the evidence as you go.
How to test the block
Run these from a standard staff account, not an admin account, since admin groups often have exceptions. Keep the results as evidence for compliance reviews.
Category-based blocking with our database
New exchanges, token sites and scam platforms appear constantly, many on brand-new domains. Category data with daily updates keeps a crypto policy current without anyone editing lists.
Common mistakes to avoid
Financial institutions can read banking web filtering and fintech web filtering for sector detail.
Frequently asked questions
Should I block crypto news sites as well as exchanges?
Usually not. Most organisations block trading, wallets and DeFi while leaving news and research open. Data that separates them avoids over-blocking.
Is blocking crypto exchanges the same as blocking cryptomining?
No. Exchange blocking is a policy choice about trading. Cryptomining blocking is a security control against scripts that use your computers to mine coins. Block mining everywhere.
Why do banks block crypto exchanges on staff networks?
Personal trading rules, conflict of interest policies, fraud risk and the need to keep client money systems separate from unregulated platforms. Check your regulator's current expectations.
Can staff get around a crypto block with a wallet app?
On their own phones and mobile data, yes. On managed devices, block wallet apps and extensions through MDM and browser policy.
Which category covers crypto exchanges in your database?
Cryptocurrency, one of our 59 web filtering categories. Crypto casinos also carry Gambling, and fake exchanges carry Malware / Phishing / Suspicious.
Does a crypto block stop staff from buying crypto through a normal broker?
Not if the broker is a regulated firm whose main category is Financial Services. Personal trading rules for those accounts are handled by your compliance process, not the filter.
Can we allow one approved exchange and block the rest?
Yes. Put an allow rule for the approved platform's domains above the Cryptocurrency block, scoped to the treasury or operations group.
How do I block crypto at a school?
Block the Cryptocurrency and cryptomining categories for students and keep news open. Most exchanges require users to be adults, and scams aimed at young people often start on social media.
Will blocking crypto break our bank's own website?
It should not. Banks and brokers that offer crypto products keep Financial Services or Online Banking as their main category, so a Cryptocurrency rule leaves them open.
Keep crypto rules current, automatically
License category data with daily updates for your firewall, secure web gateway, DNS filter or compliance product.
Binance, Coinbase, Kraken, OKX, Bybit, KuCoin, Crypto.com, Gemini and Bitstamp are trademarks of their respective owners. Microsoft, Intune and Edge are trademarks of Microsoft Corporation. Google and Chrome are trademarks of Google LLC.
These names are used here only to identify the products and services discussed. Web Filtering Database is not affiliated with, sponsored or endorsed by any of these companies.