About
Dennis Fisher is a journalist with more than 13 years of experience covering information security.
While researchers and academics are just at the beginning of the process of trying to judge the value of a recent paper on a vulnerability in the Bitcoin protocol, some are arguing that there is a smaller point that’s being missed in all of the back and forth: There is a problem with the peer-to-peer set-up of the Bitcoin network that could be exploited for profit.
The author of a paper that describes a new attack on the Bitcoin protocol says that criticisms of the paper are misguided and that there are serious problems with Bitcoin that need to be addressed.
A pair of researchers from the University of Cambridge have come up with a new side-channel attack that enables them to infer users’ mobile PIN codes with pretty good accuracy by using the camera and microphone on a mobile phone.
Dennis Fisher and Mike Mimoso talk about the major stories from the last couple of weeks, including the changes to the Microsoft bug bounty program, the new Internet bug bounty, the Apple transparency report and a new paper on a weakness in Bitcoin.
The Wysopal name has been on vulnerability advisories for better than 20 years now, and it doesn’t look like that is going to end anytime soon. But the name on those advisories in the future may be Renee rather than Chris Wysopal. Chris, one of the founding member of the L0pht hacking collective and now […]
Researchers are debating the potential value of a Bitcoin attack that could allow a small cartel of participants to become powerful enough that it could take over the mining process and whether it’s actually practical in the real world.
Cisco has patched a number of vulnerabilities in several separate products, including a serious remote code execution flaw in its Wide Area Application Services Mobile software that could allow an attacker to take complete control of a vulnerable device.
Attackers exploiting the Microsoft Windows and Office zero day revealed yesterday are using an exploit that includes a malicious RAR file as well as a fake Office document as the lure, and are installing a wide variety of malicious components on newly infected systems. The attacks seen thus far are mainly centered in Pakistan.
In a new report detailing the number and kind of requests for user information it’s gotten from various governments, Apple said it has never received a request for information under Section 215 of the USA PATROT Act and would likely fight one if it ever came. The company also disclosed that it has received between […]
Dennis Fisher talks with researcher Dragos Ruiu about his years-long struggle with a group of attackers who have infiltrated his network and are using malware that seems to resist all removal attempts and may have the ability to communicate using sound.
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