shield Access Control

Postmortem: Bancor Protocol Access Control, June 2020

On June 2020, Bancor Protocol suffered a access control — the first of 77 documented access control incidents in our archive where the loss figure was not publicly disclosed but the exploit pattern is documented below.

Attack Mechanics: How the Bancor Protocol Access Control Played Out

Exploit Class Applied to Bancor Protocol

The Bancor Protocol incident on June 18, 2020 is classified as a Access Control. A privileged function lacks a proper authorisation check, letting an unauthorised caller execute it. In the full archive, Bancor Protocol is 1 of 77 documented access control incidents.

Bancor Protocol in Context

The Bancor Protocol incident joins a class whose largest loss to date is Corkprotocol (2025) at $12M.

Impact & Recovery for Bancor Protocol

Bancor Protocol Loss Figure

The loss figure for Bancor Protocol is not publicly disclosed. The primary source reports the exploit in non-USD terms, so no USD estimate is published here. For reference, the average loss across 77 access control incidents in our archive is $636K.

Timeline Since the Bancor Protocol Incident

The Bancor Protocol exploit occurred 5.8 years ago (2,126 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.

Primary Reference for Bancor Protocol

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

FAQ

How much did Bancor Protocol lose?

The Bancor Protocol loss figure is not publicly disclosed. The primary source reports the exploit in non-USD token terms, so no USD estimate is published here.

When did the Bancor Protocol hack happen?

The Bancor Protocol exploit was recorded on June 18, 2020 — 2,126 days ago.

What type of exploit hit Bancor Protocol?

The Bancor Protocol incident is classified as a Access Control. A privileged function lacks a proper authorisation check, letting an unauthorised caller execute it.

How common is the Access Control pattern seen at Bancor Protocol?

Our archive contains 77 documented access control incidents. The Bancor Protocol incident is one of them.

How does Bancor Protocol compare to the largest Access Control attack?

The largest access control incident in our archive is Corkprotocol (2025) at $12M. The Bancor Protocol loss was not publicly disclosed.

What is the main challenge addressed in the paper related to fraud detection in cryptocurrency transactions?

The challenge of inadequate labeling for training high-performance supervised classifiers for fraud detection.

What is the significance of 'field-level IP protocol implementation' in IoT for buildings?

It enables real-time communication requirements for smart devices.