Two brothers were taken into federal custody Tuesday for allegedly stealing about $25 million worth of cryptocurrency in just a few seconds in a “first-of-its-kind manipulation” of the Ethereum blockchain. The brothers — Anton Peraire-Bueno and James Peraire-Bueno — studied math and computer science at MIT and used the skills they had acquired “at one of the most prestigious universities in the country” to exploit “the very integrity of the Ethereum blockchain in order to…