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Door Remote - 13 Oct 2026
Today in crypto, MediaMarkt took Ledger products off its shelves, Aptos launched an encrypted mempool feature designed to protect traders from frontrunning and sandwich attacks and a proposed US accounting rule could make it easier for companies to hold stablecoins as cash equivalents.
MediaMarktSaturn pulls Ledger products amid tampering reportsMediaMarktSaturn, the parent company of European electronics retailer MediaMarkt, has removed Ledger products from its physical stores and online platforms amid reports of tampered hardware wallets.
“The products have been removed from our product lineup internationally in all of our countries. We did this as a precautionary measure,” a MediaMarktSaturn spokesperson told Cointelegraph.
Ledger said Tuesday that MediaMarktSaturn suspended sales in coordination with the wallet maker following a report of a hardware implant from a customer in Germany. Ledger said no fund losses had been reported in connection with that case and that it had no indication its infrastructure, systems or services were compromised.
An X user known as Johannes claimed Monday that he purchased two Ledger wallets from separate MediaMarkt stores. He said both contained unauthorized cables and cellular modules.
The security concerns emerged Friday after Ledger said it is investigating reports of losses involving devices sold through Southeast Asian reseller CryptoBilis. Ledger said Tuesday that implants transmitted users’ recovery phrases over cellular networks and that it was investigating reports beyond CryptoBilis.
Aptos rolls out Encrypted Mempool to curb frontrunning, sandwich attacksLayer-1 blockchain Aptos has launched an optional new feature that could help shield traders from attacks involving maximal extractable value (MEV), including frontrunning and sandwich attacks.
On Monday, Aptos said its Encrypted Mempool feature is now live on its mainnet, allowing users to opt in to keep pending transactions encrypted until their block ordering is finalized. Aptos said the feature was built for institutions submitting large transactions to the chain, traders wanting to avoid MEV risk, AI agents and builders.
“When you send a transaction on any major chain today, anyone watching the network can see the details before it executes, the function you’re calling, the assets and amounts involved, and the contracts you’re interacting with,” Aptos said. “Bots use that visibility to trade against you or copy your strategy.”
Sandwich attacks, one form of MEV attack, cost Ethereum traders about $60 million over the 12 months through October 2025, according to Cointelegraph’s analysis of EigenPhi data. On Solana, sandwich attacks generated $29.7 million for bots over an 11-month period examined by Bitquery, which identified nearly 6.9 million attacks affecting about 2.2 million wallets.
US accounting proposal could clear path for corporate stablecoin adoptionA proposed change to US accounting standards could make it easier for corporations to hold and use stablecoins without compromising their reported cash positions, according to a new report from Stripe-backed blockchain Tempo.
The Financial Accounting Standards Board (FASB) is considering allowing qualifying stablecoins to be classified as cash equivalents on corporate balance sheets. Currently, companies may have to report stablecoin holdings as other assets, which can affect liquidity ratios and compliance with loan covenants.
Tempo said the proposed treatment would depend on whether companies have direct redemption rights with stablecoin issuers. This means two companies holding identical USDC tokens could receive different accounting treatment depending on their arrangements with Circle.
For example, Coinbase classified USDC and other payment stablecoins as cash equivalents in its 2025 annual report, supported by its direct redemption arrangement with Circle.
The proposal follows the passage of the GENIUS Act, which established federal requirements for payment stablecoin issuers. FASB’s separate initiative addresses how businesses account for those assets.
The accounting proposal remains open for public comment until Nov. 19.
MediaMarktSaturn pulls Ledger products amid tampering reportsMediaMarktSaturn, the parent company of European electronics retailer MediaMarkt, has removed Ledger products from its physical stores and online platforms amid reports of tampered hardware wallets.
“The products have been removed from our product lineup internationally in all of our countries. We did this as a precautionary measure,” a MediaMarktSaturn spokesperson told Cointelegraph.
Ledger said Tuesday that MediaMarktSaturn suspended sales in coordination with the wallet maker following a report of a hardware implant from a customer in Germany. Ledger said no fund losses had been reported in connection with that case and that it had no indication its infrastructure, systems or services were compromised.
An X user known as Johannes claimed Monday that he purchased two Ledger wallets from separate MediaMarkt stores. He said both contained unauthorized cables and cellular modules.
The security concerns emerged Friday after Ledger said it is investigating reports of losses involving devices sold through Southeast Asian reseller CryptoBilis. Ledger said Tuesday that implants transmitted users’ recovery phrases over cellular networks and that it was investigating reports beyond CryptoBilis.
Aptos rolls out Encrypted Mempool to curb frontrunning, sandwich attacksLayer-1 blockchain Aptos has launched an optional new feature that could help shield traders from attacks involving maximal extractable value (MEV), including frontrunning and sandwich attacks.
On Monday, Aptos said its Encrypted Mempool feature is now live on its mainnet, allowing users to opt in to keep pending transactions encrypted until their block ordering is finalized. Aptos said the feature was built for institutions submitting large transactions to the chain, traders wanting to avoid MEV risk, AI agents and builders.
“When you send a transaction on any major chain today, anyone watching the network can see the details before it executes, the function you’re calling, the assets and amounts involved, and the contracts you’re interacting with,” Aptos said. “Bots use that visibility to trade against you or copy your strategy.”
Sandwich attacks, one form of MEV attack, cost Ethereum traders about $60 million over the 12 months through October 2025, according to Cointelegraph’s analysis of EigenPhi data. On Solana, sandwich attacks generated $29.7 million for bots over an 11-month period examined by Bitquery, which identified nearly 6.9 million attacks affecting about 2.2 million wallets.
US accounting proposal could clear path for corporate stablecoin adoptionA proposed change to US accounting standards could make it easier for corporations to hold and use stablecoins without compromising their reported cash positions, according to a new report from Stripe-backed blockchain Tempo.
The Financial Accounting Standards Board (FASB) is considering allowing qualifying stablecoins to be classified as cash equivalents on corporate balance sheets. Currently, companies may have to report stablecoin holdings as other assets, which can affect liquidity ratios and compliance with loan covenants.
Tempo said the proposed treatment would depend on whether companies have direct redemption rights with stablecoin issuers. This means two companies holding identical USDC tokens could receive different accounting treatment depending on their arrangements with Circle.
For example, Coinbase classified USDC and other payment stablecoins as cash equivalents in its 2025 annual report, supported by its direct redemption arrangement with Circle.
The proposal follows the passage of the GENIUS Act, which established federal requirements for payment stablecoin issuers. FASB’s separate initiative addresses how businesses account for those assets.
The accounting proposal remains open for public comment until Nov. 19.