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Insight
Blockchain and Crypto: What Enterprise Networks Must Prepare For
Wallet apps, exchange sites, and crypto traffic already sit on many office networks — often with no one watching. What the network team should lock down first.
Whether your company trades, custody partners, or simply faces crypto-related fraud, blockchain traffic is already on enterprise networks — often unmanaged.
Traffic patterns to expect
- Wallet and exchange HTTPS to global CDNs
- Full / light node P2P on non-standard ports
- RPC endpoints (JSON-RPC) used by internal apps and bots
- NFT and Web3 frontends that pull many third-party scripts
Network and security implications
- Egress control — allow-list known exchanges and RPC providers; block anonymous mixers where policy requires.
- DNS hygiene — phishing domains for wallets are a top loss vector; protect recursive resolvers and enable DNS filtering.
- Key custody boundaries — cold storage and HSM segments must be air-gapped or one-way from general IT.
- Logging — capture who talked to which chain RPC; forensic value after a stolen seed phrase is limited without network context.
Compliance and ops
Crypto activity triggers AML and sanctions screening in many jurisdictions. Networking teams should work with legal early so blocks and exceptions are intentional — not ad-hoc ticket wars.
Practical starter kit
- Dedicated VRF for blockchain ops if the business runs nodes
- Separate identity group for traders / treasury bots
- Alert on sudden spikes to new RPC hosts
- Tabletop: "hot wallet key compromised — network containment steps"
Treat chain connectivity like any other regulated data path — explicit, observed, and owned.
Raasano supports enterprises that need secure connectivity for blockchain workloads without opening uncontrolled egress to the whole internet.