Cybersecurity

I’m Shocked, Shocked to Find There’s Cryptanalysis Going On Here (Your plaintext, sir.)

There's been a lot of media attention in the last few days to a wonderful research paper on the weakness of 1024-bit Diffie-Hellman and on how the NSA can (and possibly does) exploit this. People seem shocked about the problem and appalled that the NSA would actually exploit it. Neither reaction is right. In the first place, the limitations of 1024-bit Diffie-Hellman have been known for a long time. RFC 3766, published in 2004, noted that a 1228-bit modulus had less than 80 bits of strength. That's clearly too little. more

DNSSEC Maintenance - Just Like Mowing the Lawn

DNSSEC is a hot topic. It's a technology newly unleashed on popular networking, which has led to countless articles and posts on the subject, including right here on CircleID. The way a lot of articles try to get your attention is to talk about a technology, like DNSSEC, in a way that makes the technology either seem really significant or really complicated. That is why a lot of articles about DNSSEC make it sound like something huge, complicated, and scary. But it's not. more

IP Address Space Covered by Certificates

Since the RIPE NCC launched its Resource Certification service, there is a steady increase in the number of prefixes covered by certificates. The Resource Certification (RPKI) service was launched at the beginning of 2011. The system enables network operators to perform Border Gateway Protocol (BGP) origin validation, which means that they can securely verify if a BGP route announcement has been authorised by the legitimate holder of the address block. more

Correcting Federal Databases: A Procedural Guide

Federal databases, such as those being compiled by the Consumer Financial Protection Bureau and the Federal Trade Commission, contain data about many people and businesses. Although some of this data may be protected personal information (PPI), there is also extensive information in federal databases that is publicly disseminated via the internet. If the information is wrong, it has the potential to be a vector of tortious mischief. more

More Denial of Service Attacks

There are quite a lot of NTP-amplified denial of service attacks going around at the moment targeting tech and ecommerce companies, including some in the email space. What does NTP-amplifed mean? NTP is "Network Time Protocol" - it allows computers to set their clocks based on an accurate source, and keep them accurate. It's very widely used - OS X and Windows desktops typically use it by default, and most servers should have it running. more

Here is the DNSSEC Activity at ICANN 58 in Copenhagen March 12-15, 2017

Want to learn more about the current state of DNSSEC? Want to see demos of new software to secure email? Curious about the potential impact of the Root Key Rollover happening this year? Next week in Copenhagen, Denmark, ICANN 58 will include some great technical info about DNSSEC and DANE happening in several sessions. Here is the plan... more

How To Build A Cybernuke

The Internet infrastructure has been having a bad month. Not as bad as, say, the world's aviation infrastructure, but bad enough. First, Chinese Internet censorship leaked out to a few massively unlucky users of the I root server. Then China Telecom failed to filter someone who leaked thousands of hijacked routes to other people's networks through them, probably by accident. And then, inexplicably, Forbes went where no one had gone before... more

Paul Mockapetris to Serve as Senior Security Advisor to ICANN’s Generic Domains Division

ICANN has announced that Paul Mockapetris, inventor of the Domain Name System (DNS), has agreed to serve as Senior Security Advisor to the Generic Domains Division and its President, Akram Atallah. more

Why Domain Security Is Your First Line of Defense to Mitigate Phishing Attacks

According to the Cybersecurity and Infrastructure Security Agency (CISA), most cyberattacks, including ransomware and business email compromise, begin with phishing. Although losses due to ransomware now exceed billions annually, most ransomware protection and response measures don't protect against the most common phishing attacks. Established research shows that phishing attacks most commonly occur from a maliciously registered, confusingly similar domain name, a compromised or hijacked legitimate domain name, or via email header spoofing. more

Cyber Crime: It’s All About Data (Part 2)

In this part I want to focus on the gathering of cyber crime data. Are there best practices in the world on how cyber crime data is reported to law enforcement and aggregated to show the impact of said crime? Previously the discussion focused on the fact that cyber crime = crime and on a basic cyber (crime) training for every police officer. From the reactions this received, it is clear that some people see this as a possible solution. more

Persistent Threat Detection on a Budget

If there's one simple - high impact - thing you could do to quickly check whether your network has been taken over by a criminal entity, or uncover whether some nefarious character is rummaging through your organizations most sensitive intellectual property out of business hours, what would it be? In a nutshell, I'd look to my DNS logs. It's staggering to me how few security teams have gotten wise to regularly interrogating the logs from their recursive DNS servers. more

Blasphemy: The U.S. Problem Is Huawei’s Security Is Too Good

Everyone knows the $100B/year U.S. security apparatus taps almost the entire Internet. Friendly governments help from Australia to Canada to France. Companies like AT&T, Ericsson, Verizon, and Nokia obviously cooperate. The NSA assumes that China is attempting to do the same and that Huawei, as a Chinese company, will provide assistance. The evidence suggests otherwise. Huawei is the primary opponent of U.S. security. more

Freedom on the Internet: Where Does Your Country Stand?

Out of the 3 billion users on the Internet, how many can trust that their online communications will not be monitored or censored? How many feel safe that they can express their opinions online and will not be arrested for their ideas? How many feel confident in communicating anonymously online? For us at the Internet Society this is a key element of an Internet of opportunity: Internet access is only meaningful if people can trust that their fundamental rights will be respected and protected online as well as offline. more

New Cyberthreats: Have You Been Exposed at Home?

There are new threats that you may have already been exposed to. Here are some of the new threats and advice on how to protect yourself. During this pandemic, Zoom has emerged as a very popular teleconferencing choice for companies and educational institutions, but a new weakness for Zoom was also discovered. Some online conferences and classes that had not password protected their sessions fell victim to eavesdroppers using the screen sharing feature to "Zoom Bomb" those sessions with graphic images. more

Researchers Demonstrate How Smart Bulbs Can Be Hacked to Cause Mass Disruptions

A team of researchers have released a report detailing a new type of threat in which adjacent IoT devices, such as Internet-connected light bulbs, will infect each other with a worm that will spread explosively over large areas in a kind of nuclear chain reaction. more