The decentralized finance (DeFi) market is witnessing yet another drama. On June 20, the MSUSD “stablecoin” by the Main Street project abruptly lost its parity with the US dollar. The asset’s price plummeted well below its target $1 mark.
This incident immediately triggered a chain reaction, hitting other major players in the sector.
Auditor Split and a 90% Collapse
The catalyst for the crash was a public conflict between Main Street and its proof-of-reserves provider, Accountable. The service unilaterally terminated its partnership with the project, claiming that the stablecoin’s protocol no longer met verification standards.
The market response was swift and brutal:
- Immediately after the monitoring was cut, trust in the asset vanished.
- The MSUSD price collapsed by more than 90%.
Main Street’s Position: The development team is attempting to save face, labeling the incident a “technical reporting issue.” They maintain that the coin is 100% backed and have already allocated $8 million in USDC to support liquidity and stabilize the situation. The project is currently urgently searching for a new independent auditor.
Domino Effect: Altura Closes $39M Vault
Investor panic quickly spread to adjacent DeFi services. The primary “collateral victim” was the Altura protocol, which was forced to close its main vault holding $39 million in assets due to a massive bank run.
In just 24 hours, panicked users withdrew over $8.5 million in USDT from the platform.
| Protocol | Status | Amount at Risk / 24h Withdrawal | Cause of Panic |
| Main Street (MSUSD) | Lost peg (-90%) | $8M USDC urgently allocated | Conflict with auditor Accountable |
| Altura | Main vault closed | >$8.5M USDT withdrawn in 24h | Shared auditor with Main Street |
Altura’s CEO, Ranvir Arora, rushed to reassure the community, explaining that his project had no direct exposure to the crashed MSUSD stablecoin. However, the reputation factor kicked in: both protocols utilized the same verifier—Accountable.
What about the payouts?
The Altura team has already initiated a phased return of funds to users. Withdrawing all the money immediately won’t be possible, as a portion of the capital is locked in long-term investment strategies and Real-World Assets (RWA). Nevertheless, Altura’s other products continue to operate as usual.
The Irony of Timing
The MSUSD situation clearly demonstrated how vulnerable the DeFi segment remains to infrastructure risks. The ultimate irony of this story lies in its timing. Just this past May, the aggregate market value of all stablecoins in the crypto industry hit an all-time high, reaching an impressive $323 billion. But as events have shown, even at the peak of market triumph, no algorithm or project is safe from a sudden force majeure.
