To advertise an asset on the platform, an NFT provider must sign off-chain data declaring the price at which they are willing to sell their NFTs. However, the problem occurs when sellers seek to cancel the original listing via blockchain.

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To avoid paying gas fees, merchants simply transfer NFT to another wallet, rendering the previous offer invalid.

If the value of the NFT has dramatically increased over time, providers may return the assets to their OpenSea wallets. To purchase NFT at the original price, the first listing on the blockchain was not removed.

In their attack, they appear to have discovered a design fault in the OpenSea system and purchased NFTs with a low floor awaiting orders.

It claimed to have identified at least five attackers, including “jpegdegenlove”, who earned at least 340 Ether, which is now worth more than $800,000.

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When the vulnerability was detected, a new listing manager was added to the site. Users can now evaluate and cancel both current and inactive listings with a single button click.

NFT has also contacted and compensated affected customers. According to victim Robert Garcia, the Mutant Ape NFT sold for 4.7 Ether (about $11,300) on Sunday.

On Thursday, in response to Garcia's email, OpenSea offered him a refund of 13.8 Ether, which is now worth more than $35,000 at current exchange rates.

Microstrategy now owns a total of 125,051 BTC

Microstrategy had 125,051 bitcoins as of March 31, 2018, an increase of 660 from March 1. Nasdaq-listed Microstrategy has repurchased the dip. On Tuesday, CEO Michael Saylor tweeted,

“We will continue to invest in bitcoin as long as we have additional funds or find alternative financing sources.”

Microstrategy paid $25.0 million for 660 bitcoins, or $37,865 each. On 1/31/22, we possessed 125,051 bitcoins with an average price of $30,200 per bitcoin.

According to an SEC filing, the transaction concluded between December 30 and January 31, 2022. (SEC).

According to Bitcoin.com Markets, the price of bitcoin is now $39,121.89. According to Bloomberg, it gained 2% in the last 24 hours, 6% in the last 7 days, but lost 18% in the last 30 days.

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Phong Le, CFO of Microstrategy, stated last week:

We will continue to invest in bitcoin as long as we have excess cash flow or discover new financing sources.

The SEC contacted Microstrategy last week regarding their bitcoin tally. On December 3, the securities regulator sent a letter criticizing the non-GAAP accounting approach for bitcoin impairment costs. Microstrategy was subsequently required by the SEC to alter its future filings to include more information about its bitcoin investments.