shield Storage Collision · $124M loss

Telcoin Storage Collision postmortem (December 2023) — $124M drained

On December 2023, Telcoin was exploited in a storage collision, resulting in approximately $124M in losses. That makes the Telcoin exploit the 6th largest DeFi incident out of 690 documented in our archive.

Attack Mechanics: How the Telcoin Storage Collision Played Out

Exploit Class Applied to Telcoin

The Telcoin incident on December 25, 2023 is classified as a Storage Collision. Proxy or delegatecall pattern maps attacker-controlled storage over critical slots. In the full archive, Telcoin is 1 of 3 documented storage collision incidents.

Telcoin in Context

The $124M loss at Telcoin is the largest storage collision incident in our archive, ahead of – EFVault (2023, $5.1M).

Prior Storage Collision Before Telcoin

The nearest storage collision incident before Telcoin was – EFVault, 304 days earlier on February 24, 2023 ($5.1M lost). The same exploit class surfaced again within the storage collision attack surface.

Impact & Recovery for Telcoin

Telcoin Loss Figure

The Telcoin exploit caused $124,000,000 in losses — a mega ($100M+) incident and the 2nd largest of 214 documented in 2023. This single incident represents 19.3% of all tracked losses that year.

Where Telcoin Sits Among Storage Collision Attacks

Ranked by loss size, Telcoin is the 1st largest of 3 storage collision incidents documented. That puts the Telcoin loss above the class average of $64.55M.

Timeline Since the Telcoin Incident

The Telcoin exploit occurred 2.3 years ago (841 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.

Primary Reference for Telcoin

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

FAQ

How much did Telcoin lose?

The Telcoin exploit in December 2023 resulted in $124,000,000 in losses — the 2nd largest of 214 DeFi incidents that year.

When did the Telcoin hack happen?

The Telcoin exploit was recorded on December 25, 2023 — 841 days ago.

What type of exploit hit Telcoin?

The Telcoin incident is classified as a Storage Collision. Proxy or delegatecall pattern maps attacker-controlled storage over critical slots.

How common is the Storage Collision pattern seen at Telcoin?

Our archive contains 3 documented storage collision incidents. The Telcoin incident is one of them.

How does Telcoin compare to the largest Storage Collision attack?

The largest storage collision incident in our archive is – EFVault (2023) at $5.1M. The Telcoin loss is $124M.

How does Ethereum 2.0 aim to improve scalability and security?

Through sharding and enhanced consensus mechanisms that include validator committees and epoch-based block finalization.

How does blockchain technology impact the auditing sector?

By offering a secure, transparent, and automated method of conducting audits, enhancing the speed and effectiveness of auditing procedures.