# Network Attacks The internet is a complex set of interconnected systems that can be attacked at many points. For example, [MyEtherWallet](https://www.theregister.co.uk/2018/04/24/myetherwallet_dns_hijack/) was attacked through the DNS system, leading users to believe that a fake website was real. This resulted in the attacker walking away with $150,000 in funds. A [similar attack was performed](https://www.bleepingcomputer.com/news/security/dns-poisoning-or-bgp-hijacking-suspected-behind-trezor-wallet-phishing-incident/) against Trezor's web wallet. Other network attacks are possible from exploiting server vulnerabilities or configuration errors to gain access to crypto keys. **Mitigation:** * Don't use services with a single point of failure that could result in a high-value honeypot for attackers. * Use sovereign key management where your keys aren't kept on networked services. * Never ignore HTTPS error messages on sensitive websites. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.casa.io/wealth-security-protocol/threat-overview/network-attacks.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.