Cybersecurity

Phish or Fair?

It shouldn't be a big surprise to hear that phishing is a big problem for banks. Criminals send email pretending to be a bank, and set up web sites that look a lot like a bank. One reason that phishing is possible is that e-mail has no built in security, so that if a mail message comes in purporting to be from, say, [email protected], there's no easy way to tell whether the message is really from bankofamerica.com, or from a crook. more

Loose Lips

When I was in the military, we were constantly drilled about the problem of Essential Elements of Friendly Information, or EEFIs. What are EEFis? If an adversary can cast a wide net of surveillance, they can often find multiple clues about what you are planning to do or who is making which decisions. For instance, if several people married to military members all make plans to be without their spouses for a long period of time, the adversary can be certain that a unit is about to be deployed. more

A Quick Look at the 4 Most Prevalent Types of Threat Intelligence

You won't go far with your cybersecurity when you're relying on the wrong intelligence. This is simply because not all types of threat intelligence are equal. You might have experienced this yourself; investing time and resources into just one only to receive meagre results in the end. Sadly, many organizations fail to realize that depending on just a single source of information is a big mistake. more

Phishing: A Look Into the E-Crime Landscape

At the recent Anti-Phishing Working Group meeting in San Francisco, Rod Rasmussen and I published our latest APWG Global Phishing Survey. Phishing is a distinct kind of e-crime, one that's possible to measure and analyze in depth. Our report is a look at how criminals act and react, and what the implications are for the domain name industry. more

EuroDIG Sessions on Friday, June 5, about Cybersecurity, Network Neutrality, IANA, Access and More

What do Europeans interested in Internet policy think about cybersecurity, network neutrality, IANA, improving Internet access and other topics? Tomorrow the second day of the European Dialog on Internet Governance (EuroDIG) 2015 in Sofia, Bulgaria, will cover all those topics and many more. I've listed some of the sessions that either I or my Internet Society colleagues are participating in. I will personally be involved as a panelist on the two sessions about cybersecurity. more

ICANN And The DOC Can’t

The former contract with ICANN and the US Department of Commerce (DOC) was due to expire on September 30, 2002. In the statement announcing the renewal, the DOC acknowledged that ICANN was the subject of many complaints from many sectors of the Internet community. Some of these complaints had been presented to the US Congress during a hearing held in June 2002 by a Senate Subcommittee. At the hearing, a General Accounting Office (GAO) spokesperson, Peter Guerrero, testified, noting not only that ICANN had failed in its mandate, but that the U.S. Department of Commerce was also at fault in failing to properly oversee ICANN activities. He explains... more

Biden’s National Cybersecurity Strategy Suggests Increased Website Security, Customer Protection

Phishing attacks have been rising over the past couple of years. Reports show that there was a 345 percent increase in phishing attacks between 2020 and 2021. In 2022, the number of advanced phishing attacks rose by 356 percent. Behind these alarming numbers, however, is an even uglier picture of digital fraud: a difficult-to-quantify prevalence of fake or spoof websites. more

Renowned Security Expert Bruce Schneier Joins EFF Board of Directors

Schneier's insight is considered particularly important according to EFF, as more and more is learnt "about the unconstitutional surveillance programs from the National Security Agency and the depth and breadth of data the NSA is collecting on the public." more

Greylisting Still Works - Part II

In my last post I blogged about greylisting, a well-known anti-spam technique for rejecting spam sent by botnets. When a mail server receives a an attempt to deliver mail from an IP address that's never sent mail before, it rejects the message with a "soft fail" error which tells the sender to try again later. Real mail senders always retry, badly written spamware often doesn't. I found that even though everyone knows about greylisting, about 2/3 of IPs don't successfully retry. more

Preventing DNS Strain When You Deploy DNSSEC

The barriers to DNSSEC adoption are quickly disappearing. There are nearly 20 top-level domains that have already deployed DNSSEC including generic TLDs like .org and .gov. This July, the DNS root will also be signed, and will begin validating. At this point, the decision for remaining TLDs to deploy DNSSEC is really no longer a question. more

Corporate Espionage in the News: Hilton and the Oil Industry

Is anyone calling espionage by means of computers cyber-espionage yet? I hope not. At least they shouldn't call it cyber war. Two news stories of computerized espionage reached me today. The first, regarding the Oil industry, was sent by Marc Sachs to a SCADA security mailing list we both read. The second, about the hotel industry, was sent by Deb Geisler to science fiction convention runners (SMOFS) mailing list we both read. more

Protecting Customer Data

There have been a number of reports recently about customer lists leaking out through Email Service Providers (ESPs). In one case, the ESP attributed the leak to an outside hack. In other cases, the ESPs and companies involved have kept the information very quiet and not told anyone that data was leaked. People do notice, though, when they use single use addresses or tagged addresses and know to whom each address was submitted. Data security is not something that can be glossed over and ignored. more

Cryptographic Tools for Non-Existence in the Domain Name System: NSEC and NSEC3

In my previous post, I described the first broad scale deployment of cryptography in the DNS, known as the Domain Name System Security Extensions (DNSSEC). I described how a name server can enable a requester to validate the correctness of a "positive" response to a query -- when a queried domain name exists -- by adding a digital signature to the DNS response returned. more

DNS Amplification Attacks: Out of Sight, Out of Mind? (Part 2)

This post follows an earlier post about DNS amplification attacks being observed around the world. DNS Amplification Attacks are occurring regularly and even though they aren't generating headlines targets have to deal with floods of traffic and ISP infrastructure is needlessly stressed -- load balancers fail, network links get saturated, and servers get overloaded. And far more intense attacks can be launched at any time. more

ICANN and Iraq: Suffering Along

I thought of ICANN yesterday when reading about the devolution of the Iraqi Governing Council, which managed to unite for just a moment to approve a constitution with about the half-life of lutetium. ICANN and the IGC: two institutions put in charge of ill-behaved constituencies and stuck in chronic failure mode. Could anything be learned by examining them at arm's length? Indeed, different as they are, their histories contain several common elements... more