shield Reentrancy · $170K loss

– Defrost Hack: How $170K Was Lost in a Reentrancy (2022)

On December 2022, – Defrost was exploited in a reentrancy, resulting in approximately $170K in losses. That makes the – Defrost exploit the 177th largest DeFi incident out of 690 documented in our archive.

Attack Mechanics: How the – Defrost Reentrancy Played Out

Exploit Class Applied to – Defrost

The – Defrost incident on December 23, 2022 is classified as a Reentrancy. A malicious contract re-enters a vulnerable function before state is updated, letting it drain funds multiple times. In the full archive, – Defrost is 1 of 51 documented reentrancy incidents.

– Defrost in Context

At $170K, the – Defrost exploit is a minor (<$1M) event compared to the largest same-class incident in our archive — Curve (2023) at $41M.

Prior Reentrancy Before – Defrost

The nearest reentrancy incident before – Defrost was – DFXFinance, 43 days earlier on November 10, 2022 ($4M lost). The same exploit class surfaced again within the reentrancy attack surface.

Impact & Recovery for – Defrost

– Defrost Loss Figure

The – Defrost exploit caused $170,000 in losses — a minor (<$1M) incident and the 18th largest of 129 documented in 2022. This single incident represents 0.1% of all tracked losses that year.

Where – Defrost Sits Among Reentrancy Attacks

Ranked by loss size, – Defrost is the 22nd largest of 51 reentrancy incidents documented. That puts the – Defrost loss below the class average of $2.87M.

Timeline Since the – Defrost Incident

The – Defrost exploit occurred 3.3 years ago (1,208 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.

Primary Reference for – Defrost

Public post-mortem / on-chain analysis for the – Defrost incident: view source.

FAQ

How much did – Defrost lose?

The – Defrost exploit in December 2022 resulted in $170,000 in losses — the 18th largest of 129 DeFi incidents that year.

When did the – Defrost hack happen?

The – Defrost exploit was recorded on December 23, 2022 — 1,208 days ago.

What type of exploit hit – Defrost?

The – Defrost incident is classified as a Reentrancy. A malicious contract re-enters a vulnerable function before state is updated, letting it drain funds multiple times.

How common is the Reentrancy pattern seen at – Defrost?

Our archive contains 51 documented reentrancy incidents. The – Defrost incident is one of them.

How does – Defrost compare to the largest Reentrancy attack?

The largest reentrancy incident in our archive is Curve (2023) at $41M. The – Defrost loss is $170K.

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