OtterSec audits blockchain systems, including layer-one networks, wallets, DeFi protocols, bridges, and related infrastructure.
Wallet Guard vs 3F Mutual
How do Wallet Guard and 3F Mutual compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Wallet Guard | 3F Mutual |
|---|---|---|
| What it is | Wallet Guard was an open-source browser extension for detecting crypto scams and wallet drainers; its site says the service ended in March 2025. | 3F Mutual offers insurance related to a MakerDAO emergency shutdown, according to its page. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Browser extension, Web | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Wallet Guard and 3F Mutual.
Nexus Mutual offers crypto cover for risks including hacks and describes itself as an alternative to insurance.
Rekt publishes investigative journalism and commentary on crypto incidents, with a ranked archive of major blockchain losses.
OpenZeppelin Defender is documented within the official OpenZeppelin library and tools documentation.
Each Ethernaut level requires hacking a smart contract in the Ethereum Virtual Machine through a Web3 and Solidity wargame.
Tulipa Capital curates DeFi risk strategies and provides dashboards and partner information for its on-chain finance work.







