Deloitte, one of the world’s “big four” accounting firms, has acknowledged a breach of its internal email systems, British news outlet The Guardian revealed today. Deloitte has sought to downplay the incident, saying it impacted “very few” clients. But according to a source close to the investigation, the breach dates back to at least the fall of 2016, and involves the compromise of all administrator accounts at the company as well as Deloitte’s entire internal email system.
KrebsOnSecurity received many a missive over the past 24 hours from readers who wanted to know why I’d not written about widespread media reports that Mirai — a malware strain made from hacked “Internet of Things” (IoT) devices such as poorly secured routers and IP cameras — was used to knock the entire country of Liberia offline. The trouble is, as far as I can tell no such nationwide outage actually occurred.
Earlier this month, I published a story about a criminal hacking gang using Adobe ColdFusion vulnerabilities to build a botnet of hacked e-commerce sites that were milked for customer credit card data. Today’s post examines the impact that this botnet has had on several businesses, as well as the important and costly lessons these companies learned from the intrusions.