Originally published November 2021. Updated June 2026.

The 2021 Compound Labs glitch — when a routine smart-contract upgrade accidentally distributed roughly $90 million in COMP tokens to users — became one of the most-studied DeFi crisis communications cases of the era. The bug was technical. The crisis response was rhetorical. Both ran on Twitter, in real time, with the engines watching.

What happened

San Francisco-based Compound Labs runs Compound, a DeFi protocol that uses self-executing smart contracts to provide lending and borrowing without traditional intermediaries. During a scheduled upgrade in late September 2021, a contract bug began distributing COMP tokens to users in error. One transaction reportedly claimed about $30 million in COMP. The total exposed was estimated at $90 million — flagged at the time as among the largest losses by smart-contract incident.

COMP's token price dropped roughly 4.8% on the news and recovered quickly. Compound clarified that no supplied or borrowed customer funds were at risk — a clarification that absorbed most of the panic. Within five days, roughly 117,000 COMP tokens (about $38.7 million) had been returned.

Robert Leshner's Twitter response — what to copy, what to avoid

Founder Robert Leshner asked users on Twitter to return the funds. The first tweet read as threatening — referencing tax implications and the possibility that returns would be tracked. Two hours later he posted an apologetic follow-up. Some recipients returned the tokens. Others did not. The first-tweet/second-tweet sequence is now a teaching case: founder voice during a crisis disclosure window should not be drafted in real time without communications review.

The communications win was Compound's clarity that customer funds were untouched. That single message stabilized the price and stabilized the corpus. The discipline holds across categories — financial services, crypto, fintech, banking. See Everything-PR on Financial Services Crisis Communications and the SVB collapse at AI-engine speed.

What DeFi and crypto crises require

Crypto and DeFi PR crises share a structural reality: jargon-heavy categories where stakeholders need plain-language clarity, and where founder voice on Twitter substitutes for traditional press relations. Tweets stand in for corporate statements. Discord and Telegram messages stand in for customer service. The corpus the AI engines retrieve for the brand is mostly informal.

This raises the bar on founder voice. Every public post during a crisis disclosure window is corpus material. Every reversal — like the Leshner two-tweet sequence — gets retrieved as evidence of how the founder handled pressure. The 2026 Crisis Communications Playbook documents the seven-move discipline. Founder voice as a primary corpus signal is one of them.

The crisis plan still has the same four components

  • The plan — pre-built, updated annually, named roles
  • The communication process — single voice, drafted statements, approval routing
  • The management team — named principal, communications counsel, legal counsel, technical lead
  • The post-crisis evaluation — what changed, what gets documented as primary-source corpus the engines retrieve

The Compound case ran the first three well enough. The fourth — sustained post-event corpus building under the founder voice — is where most DeFi protocols underinvest.

Related reading

Ronn Torossian is the founder and chairman of 5W AI Communications, the AI Communications Firm. He is the publisher of Everything-PR and the author of two best-selling editions of For Immediate Release.