Bitcoin Exchanges Under 'Massive and Concerted Attack' [CoinDesk]

Looks like "transaction malleability" may be the Bitcoin meme of the week

"Antonopoulos, who is the chief security officer of Blockchain.info, said a DDoS attack is taking Bitcoin’s transaction malleability problem and applying it to many transactions in the network, simultaneously.
“So as transactions are being created, malformed/parallel transactions are also being created so as to create a fog of confusion over the entire network, which then affects almost every single implementation out there,” he added."

Bitcoin Exchanges Under 'Massive and Concerted Attack'