> For the complete documentation index, see [llms.txt](https://docs.casa.io/wealth-security-protocol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.casa.io/wealth-security-protocol/threat-overview/network-attacks.md).

# 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.