On July 2023, NewFi was exploited in a slippage abuse, resulting in approximately $31K in losses. That makes the NewFi exploit the 299th largest DeFi incident out of 690 documented in our archive.
Attack Mechanics: How the NewFi Slippage Abuse Played Out
Exploit Class Applied to NewFi
The NewFi incident on July 17, 2023 is classified as a Slippage Abuse. Unprotected swap routes let the attacker extract value through sandwich trades or price drift. In the full archive, NewFi is 1 of 13 documented slippage abuse incidents.
NewFi in Context
At $31K, the NewFi exploit is a minor (<$1M) event compared to the largest same-class incident in our archive — DCFToken (2025) at $442K.
Prior Slippage Abuse Before NewFi
The nearest slippage abuse incident before NewFi was BabyDogeCoin02, 26 days earlier on June 21, 2023. The same exploit class surfaced again within the slippage abuse attack surface.
NewFi Vulnerability Signature
The primary source categorises the NewFi exploit specifically as “Lack Slippage Protection”. This narrower label is entity-specific: it reflects how the NewFi contract failed, rather than the broad slippage abuse pattern alone.
Impact & Recovery for NewFi
NewFi Loss Figure
The NewFi exploit caused $31,000 in losses — a minor (<$1M) incident and the 112th largest of 214 documented in 2023.
Where NewFi Sits Among Slippage Abuse Attacks
Ranked by loss size, NewFi is the 5th largest of 13 slippage abuse incidents documented. That puts the NewFi loss below the class average of $119.9K.
Timeline Since the NewFi Incident
The NewFi exploit occurred 2.7 years ago (1,002 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.
Primary Reference for NewFi
Public post-mortem / on-chain analysis for the NewFi incident: view source.
FAQ
How much did NewFi lose?
The NewFi exploit in July 2023 resulted in $31,000 in losses — the 112th largest of 214 DeFi incidents that year.
When did the NewFi hack happen?
The NewFi exploit was recorded on July 17, 2023 — 1,002 days ago.
What type of exploit hit NewFi?
The NewFi incident is classified as a Slippage Abuse. Unprotected swap routes let the attacker extract value through sandwich trades or price drift.
How common is the Slippage Abuse pattern seen at NewFi?
Our archive contains 13 documented slippage abuse incidents. The NewFi incident is one of them.
How does NewFi compare to the largest Slippage Abuse attack?
The largest slippage abuse incident in our archive is DCFToken (2025) at $442K. The NewFi loss is $31K.
What challenge does the protocol aim to address regarding multi-party transactions across blockchains?
It aims to enable secure and private multi-party transactions without the need for a trusted third party or revealing transaction details to the network.
What measures are taken to preserve patient privacy within the system?
Employing anonymization and de-identification techniques for patient data.