There are two Yahoo conspiracy theories: It was hacked by a "state-sponsored actor," and it disabled email forwarding to prevent a post-breach exodus. Although neither scenario appears to be true, that doesn't mean the badly breached search giant is in the clear.
Yahoo is appealing to the U.S. director of national intelligence to declassify an order that allegedly required the company to install secret spying software that scanned incoming email accounts for specific content.
Yahoo, now negotiating its sale to Verizon, has posted an increase in quarterly profits and page views, bolstering its case that its massive data breach didn't irrevocably damage its value. But with ad revenues in decline, time is running out.
Understanding the difference between cybersecurity crisis management and security incident response could be critical to your organization's survival. In this blog, a CISO offers insights on creating an effective crisis management plan.
The latest edition of the ISMG Security Report leads off with an analysis of the PCI Security Standards Council's new requirements that are designed to help thwart attempts to defeat encryption in point-of-sale devices.
In a rare case of potential breach accountability, Verizon is reportedly demanding a $1 billion discount to acquire Yahoo as a result of the search giant's failure to more rapidly spot a data breach that compromised at least 500 million users' accounts.
Markus Jakobsson, Chief Scientist at Agari, has released a new book focused on socially-engineered schemes. What are the key takeaways, and how can security leaders improve their abilities to fight back against the schemers?
The internet of things is being compromised by malware-wielding attackers exploiting default credentials baked into devices. What will it take for manufacturers to ship devices that are secure by default?
The Yahoo breach - and the theft of unencrypted security questions and answers - is a reminder to use unique passwords and security questions, store them using a password safe and take advantage of two-factor authentication whenever it's available.
Hillary Clinton and Donald Trump ventured into new territory for their first presidential debate: cybersecurity. It marked one of the few subjects on which both candidates broadly agreed, although the exchange was marked with sharp jabs and an interesting attribution theory from Trump.
As pressure to speed the development of applications intensifies, CISOs must be the "voice of reason," taking a leadership role in ensuring security issues are addressed early in app development process, says John Dickson, principal at Denim Group, a Texas-based security consultancy.
Security expert Sean Sullivan isn't surprised that the massive 2014 breach of Yahoo, which exposed at least 500 million account details, only recently came to light. Here's why, as well as what users must learn from this breach.
A roundup of the just-concluded ISMG Fraud and Breach Prevention in Toronto leads the latest edition of the ISMG Security Report. Also, how one CISO gets his security message across to the board and the challenges CISOs face during their first 100 days on the job.
The handling of a recent data breach - the details of which are still unfolding - by Oakland, Calif.-based web services company Regpack provides a look into how the discovery and disclosure of a breach can turn into a real train wreck.