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update security page
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Ilaria Enache authored and Ilaria Enache committed Jul 29, 2024
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At its core, Wormhole is secured by a network of [Guardian](#){target=\_blank} nodes that validate and sign messages. If a super majority (e.g., 13 out of 19) of Guardians sign the same message, it can be considered valid. A smart contract on the target chain will verify the signatures and format of the message before approving any transaction.

- Wormhole's core security primitive is its signed messages (signed VAAs)
- The Guardian network is currently secured by a collection of 19 of the world's top **[validator companies](https://wormhole-foundation.github.io/wormhole-dashboard/#/?endpoint=Mainnet){target=\_blank}**
- The Guardian network is currently secured by a collection of 19 of the world's top [validator companies](https://wormhole-foundation.github.io/wormhole-dashboard/#/?endpoint=Mainnet){target=\_blank}
- Guardians produce signed state attestations (signed VAAs) when requested by a Core Contract integrator
- Every Guardian runs full nodes (rather than light nodes) of every blockchain in the Wormhole network, so if a blockchain suffers a consensus attack or hard fork, the blockchain will disconnect from the network rather than potentially produce invalid signed VAAs
- Any Signed VAA can be verified as authentic by the Core Contract of any other chain
Expand Down Expand Up @@ -46,7 +46,7 @@ Via governance, the Guardians can:
- Expand the Guardian set
- Upgrade ecosystem contract implementations

The governance system is fully open source in the core repository. See the **[Open Source section](#){target=\_blank}** for contract source.
The governance system is fully open source in the core repository. See the [Open Source section](#){target=\_blank} for contract source.

## Monitoring

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- Block production and consensus of each blockchain - if a blockchain's consensus is violated, it will be disconnected from the network until the Guardians resolve the issue
- Smart contract level data - via processes like the Governor, Guardians constantly monitor the circulating supply and token movements across all supported blockchains
- Guardian level activity - the Guardian Network functions as an autonomous decentralized computing network, complete with its blockchain (**[Gateway](#){target=\_blank}**)
- Guardian level activity - the Guardian Network functions as an autonomous decentralized computing network, complete with its blockchain ([Gateway](#){target=\_blank})

## Gateway And Asset Layer Protections

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- **Global Accountant** - the accountant tracks the total circulating supply of all Wormhole assets across all chains and prevents any blockchain from bridging assets which would violate the supply invariant

In addition to the Global Accountant, Guardians may only sign transfers that do not violate the requirements of the Governor. The **[Governor](https://github.com/wormhole-foundation/wormhole/blob/main/whitepapers/0007_governor.md){target=\_blank}** tracks inflows and outflows of all blockchains and delays suspicious transfers that may indicate an exploit.
In addition to the Global Accountant, Guardians may only sign transfers that do not violate the requirements of the Governor. The [Governor](https://github.com/wormhole-foundation/wormhole/blob/main/whitepapers/0007_governor.md){target=\_blank} tracks inflows and outflows of all blockchains and delays suspicious transfers that may indicate an exploit.

## Open Source

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## Audits

Wormhole has been heavily audited, with **29 third-party audits completed** and more started.
Wormhole has been heavily audited, with _29 third-party audits completed_ and more started.

Wormhole has had audits performed by the following firms, and continues to seek more:

Expand All @@ -96,23 +96,23 @@ Wormhole has had audits performed by the following firms, and continues to seek
- Coinspect
- Halborn

**[The most up-to-date list of audits, as well as the final reports](https://github.com/wormhole-foundation/wormhole/blob/main/SECURITY.md#3rd-party-security-audits){target=\blank}**.
[The most up-to-date list of audits, as well as the final reports](https://github.com/wormhole-foundation/wormhole/blob/main/SECURITY.md#3rd-party-security-audits){target=\blank}.

## Bug Bounties

Wormhole has one of the largest bug bounty programs in software development and has repeatedly shown commitment to engaging with the white hat community.

Wormhole hosts two bug bounty programs:

- An **[Immunefi](https://immunefi.com/bug-bounty/wormhole/){target=\blank}** program
- As well as a **[self-hosted program](https://immunefi.com/bug-bounty/wormhole/){target=\blank}**
- An [Immunefi](https://immunefi.com/bug-bounty/wormhole/){target=\blank} program
- As well as a [self-hosted program](https://immunefi.com/bug-bounty/wormhole/){target=\blank}

Both platforms have a top payout of **2.5 million dollars**.
Both platforms have a top payout of _2.5 million dollars_.

If you are interested in contributing to Wormhole security, please look at this section for **[Getting Started as a White Hat](https://github.com/wormhole-foundation/wormhole/blob/main/SECURITY.md#white-hat-hacking){target=\blank}**, and follow the **[Wormhole Contributor Guidelines](https://github.com/wormhole-foundation/wormhole/blob/main/CONTRIBUTING.md){target=\blank}**.
If you are interested in contributing to Wormhole security, please look at this section for [Getting Started as a White Hat](https://github.com/wormhole-foundation/wormhole/blob/main/SECURITY.md#white-hat-hacking){target=\blank}, and follow the [Wormhole Contributor Guidelines](https://github.com/wormhole-foundation/wormhole/blob/main/CONTRIBUTING.md){target=\blank}.

For more information about submitting to the bug bounty programs, refer to the [Wormhole Immunefi page](https://immunefi.com/bug-bounty/wormhole/){target=\blank}.

## Learn More

The **[SECURITY.md](https://github.com/wormhole-foundation/wormhole/blob/main/SECURITY.md){target=\blank}** from the official repository has the latest security policies and updates.
The [SECURITY.md](https://github.com/wormhole-foundation/wormhole/blob/main/SECURITY.md){target=\blank} from the official repository has the latest security policies and updates.

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