Threat Intelligence

Trust Isn’t Easy: Drawing an Agenda from Friday’s DDoS Attack and the Internet of Things

Last week, millions of infected devices directed Internet traffic to DNS service provider Dyn, resulting in a Distributed Denial of Service (DDoS) attack that took down major websites including Twitter, Amazon, Netflix, and more. In a recent blog post, security expert Bruce Schneier argued that "someone has been probing the defences of the companies that run critical pieces of the Internet". This attack seems to be part of that trend. This disruption begs the question: Can we trust the Internet? more

DNS and Stolen Credit Card Numbers

FireEye announced a new piece of malware yesterday named MULTIGRAIN. This nasty piece of code steals data from Point of Sale (PoS) and transmits the stolen credit card numbers by embedding them into recursive DNS queries. While this was definitely a great catch by the FireEye team, the thing that bothers me here is how DNS is being used in these supposedly restrictive environments. more

Why More Effort Won’t Solve the Exceptional Access Problem

In the debate over government "exceptional access" to encrypted communications, opponents with a technical bent (and that includes me) have said that it won't work: that such a scheme would inevitably lead to security problems. The response -- from the policy side, not from technical folk - has been to assert that perhaps more effort would suffice. FBI Director James Comey has said, "But my reaction to that is: I'm not sure they've really tried." Hillary Clinton wants a "Manhattan-like project, something that would bring the government and the tech communities together". More effort won't solve the problem - but the misunderstanding lies at the heart of why exceptional access is so hard. more

Consumer Trust? Not at ICANN Compliance

Every person and every entity must have a philosophy if they are to be successful. Consumer trust is one of the key issues at the heart of keeping the Internet open as well as prosperous. The ICANN Affirmation of Commitments was signed in 2009 and has been the guiding principle for ICANN's activities going forward. The title of section 9.3 is Promoting competition, consumer trust, and consumer choice. This section is in essence the embodiment of the commitment of ICANN. more

Diving Into the DNS

If you are at all interested in how the Internet's Domain Name System (DNS) works, then one of the most rewarding meetings that is dedicated to this topic is the DNS OARC workshops. I attended the spring workshop in Amsterdam in early May, and the following are my impressions from the presentations and discussion. What makes these meetings unique in the context of DNS is the way it combines operations and research, bringing together researchers, builders and maintainers of DNS software systems, and operators of DNS infrastructure services into a single room and a broad and insightful conversation. more

The Internet of Stupid Things

In those circles where Internet prognostications abound and policy makers flock to hear grand visions of the future, we often hear about the boundless future represented by "The Internet of Things". This phrase encompasses some decades of the computing industry's transition from computers as esoteric piece of engineering affordable only by nations, to mainframes, desktops, laptops, handhelds, and now wrist computers. Where next? more

Internet Security Marketing: Buyer Beware

As security breaches increasingly make headlines, thousands of Internet security companies are chasing tens of billions of dollars in potential revenue. While we, the authors, are employees of Internet security companies and are happy for the opportunity to sell more products and services, we are alarmed at the kind of subversive untruths that vendor "spin doctors" are using to draw well-intentioned customers to their doors. Constructive criticism is sometimes necessarily harsh, and some might find the following just that, harsh. But we think it's important that organizations take a "buyers beware" approach to securing their business. more

IPv6 Security Myth #5: Privacy Addresses Fix Everything!

Internet Protocol addresses fill two unique roles. They are both identifiers and locators. They both tell us which interface is which (identity) and tell us how to find that interface (location), through routing. In the last myth, about network scanning, we focused mainly on threats to IPv6 addresses as locators. That is, how to locate IPv6 nodes for exploitation. Today's myth also deals with IPv6 addresses as identifiers. more

A Cynic’s View of 2015 Security Predictions - Part 3

A number of security predictions have been doing the rounds over the last few weeks, so I decided to put pen to paper and write a list of my own. However, I have a quite a few predictions so I have listed them over several blog posts. After all, I didn't want to bombard you with too much information in one go! Part three examines the threats associated with data breaches. more

Bashbleed - A Nasty Reminder Never to Forget Security 101

After the botched burglary at the Watergate Apartments, every scam and scandal that hit the headlines became a 'gate' -- Irangate, Contragate, you name it. The Heartbleed bug is possibly the closest thing to Watergate that this generation of computer security had seen till the past few days -- an exploit in a component that is "just there" -- something you utterly rely on to be there and perform its duties, and give very little thought to how secure (or rather, insecure) it might be. So, fittingly, every such catastrophic bug in an ubiquitous component is now a 'bleed'. more

DNSSEC Adoption Part 1: A Status Report

Where is the domain industry with the adoption of DNSSEC? After a burst of well publicized activity from 2009-2011 -- .org, .com, .net, and .gov adopting DNSSEC, roots signed, other Top-Level Domains (TLDs) signed -- the pace of adoption appears to have slowed in recent years. As many CircleID readers know, DNSSEC requires multiple steps in the chain of trust to be in place to improve online security. more

Paul Vixie on How the Openness of the Internet Is Poisoning Us

In a video interview conducted during the NSCS ONE conference, Paul Vixie CEO of Farsight Security further discusses the topic of his presentation titled: "Defective by Design -- How the Internet's Openness is Slowly Poisoning Us". more

Bruce Schneier to Speak About Internet Surveillance at IETF 88 Technical Plenary Next Week

How do we harden the Internet against the kinds of pervasive monitoring and surveillance that has been in recent news? While full solutions may require political and legal actions, are there technical improvements that can be made to underlying Internet infrastructure? As discussed by IETF Chair Jari Arkko in a recent post on the IETF blog, "Plenary on Internet Hardening", the Technical Plenary at next weeks IETF 88 meeting in Vancouver, BC, Canada, will focus on this incredibly critical issue. more

IETF Looking at Technical Changes to Raise the Bar for Monitoring

During a speech last week at the Internet Governance Forum in Bali, Jari Arkko, IETF's chair, re-emphasized it's efforts to ramp up online security in light of recent revelations of mass internet surveillance. "Perhaps the notion that internet is by default insecure needs to change," Arkko said. Significant technical fixes "just might be possible." more

The Challenge of DNS Security

When the domain name system (DNS) was first designed, security was an afterthought. Threats simply weren't a consideration at a time when merely carrying out a function - routing Internet users to websites - was the core objective. As the weaknesses of the protocol became evident, engineers began to apply a patchwork of fixes. After several decades, it is now apparent that this reactive approach to DNS security has caused some unintended consequences and challenges. more