Cybersecurity

Three Things Registrars Must Do to Enhance Security

If the rise of phishing has taught us anything, it's that on the Internet, if a digital asset has value, there's somebody out there who wants to steal it. Whether it's a bank account password, a credit card number, a PayPal login, or even a magic sword in an online game, there's a fraudster somewhere trying to misappropriate it for his or her own nefarious purposes. Domain names have always been a target for such criminals. more

Averting the Internet Meltdown

A call to action went out: a small, California-based organization called People for Internet Responsibility (PFIR) posted an announcement for an urgent conference - "Preventing the Internet Meltdown." The meltdown that PFIR envisioned was not an impending technical malfunction or enemy attack. Instead, conference organizers foresaw "risks of imminent disruption" to the Internet that would come from an unlikely sector: government officials and bureaucrats working on the unglamorous-sounding problems of Internet Governance. more

Designing Secure Networks with Cisco Technology, Part 3

In this multipart series I will be presenting some of the leading industry-standard best practices for enterprise network security using Cisco technologies. Each article in the series will cover a different aspect of security technologies and designs and how each can be deployed in the enterprise to provide the best security posture at the lowest possible budgetary and administrative cost. In Part 2 of this series I discussed security risks and vulnerability. In this article we begin to focus on the role Cisco network and security technologies play in ensuring the safety and security of network data. more

Dispersing a DDoS: Initial Thoughts on DDoS Protection

Distributed Denial of Service is a big deal -- huge pools of Internet of Things (IoT) devices, such as security cameras, are compromised by botnets and being used for large scale DDoS attacks. What are the tools in hand to fend these attacks off? The first misconception is that you can actually fend off a DDoS attack. There is no magical tool you can deploy that will allow you to go to sleep every night thinking, "tonight my network will not be impacted by a DDoS attack." more

DNS-Based DDoS: Diverse Options for Attackers

Denial of service attacks have been around since the Internet was commercialized and some of the largest attacks ever launched relied on DNS, making headlines. But every day a barrage of smaller DNS-based attacks take down targets and severely stress the DNS ecosystem. Although DNS servers are not usually the target of attacks they are often disrupted so attention from operation teams is required. There is no indication the problem is going away and attackers continue to innovate. more

Sophia Bekele: The AUCC Debate on Cybersecurity Needs to Involve All Stakeholders

The African Union's Convention on the Establishment of a Credible Legal Framework for Cyber Security in Africa (AUCC) has been the focus of debate recently.To shed light on online security issues in Africa, CIO East Africa sought the views of Ms Sophia Bekele, an internet security expert and international policy advisor over internet and ICT. more

Easy Access to ICANN, IP Address Data Beats Info on Encrypted Data, Says Telstra Cybersecurity Head

When it comes to fighting cybercrime, "being able to easily access ICANN and look up IP addresses is a lot more important than accessing the minutiae of encrypted data communications," says Jacqueline McNamara, head of cybersecurity at Telstra. more

DDoS Attacks: Don’t Be In Denial of the Risks

Unlike traditional attacks by hackers which breach a business's security systems, resulting in defaced websites, intellectual property theft and/or customer data theft, a DDoS attack focuses on making a business's Internet connected infrastructure (e.g. web servers, email servers, database servers, FTP servers, APIs, etc.) unavailable to legitimate users. A business's brand reputation, which can take years to establish, can be swept away in just a few hours from a single DDoS attack in the same way a natural disaster like a flood or earthquake can impact a traditional brick and mortar business. more

How to Manage Internet Abundance

The Internet has two billion global users, and the developing world is just hitting its growth phase. Mobile data traffic is doubling every year, and soon all four billion mobile phones will access the Net. In 2008, according to a new UC-San Diego study, Americans consumed over 3,600 exabytes of information, or an average of 34 gigabytes per person per day. Microsoft researchers argue in a new book, "The Fourth Paradigm," that an "exaflood" of real-world and experimental data is changing the very nature of science itself. We need completely new strategies, they write, to "capture, curate, and analyze" these unimaginably large waves of information. more

Google Launcheds Advanced Protection Program for “High-Risk” Users

Coninsiding with October Cybersecurity Awareness Month, Google today announced the launch of Advanced Protection Program specifically "designed for those who are at an elevated risk of attack." more

A Closer Look at Apple and Location-Tracking

There's been a lot of media attention to a report that iPhones track your movements. It's even reached the U.S. Senate. I'm underwhelmed. I think that the threat is overhyped. What is happening is that these devices create a hidden file with your location... more

How a Security Specialist Fell Victim to Attack

Our systems are protected by state of the art security systems. Our SPAM filter is a hardware device that is nearly 100% effective. It also helps in protecting against Spyware and other malicious code. Our Firewall is similar to those you would find in large corporations. Our Anti-Virus system has served us well and we've not had problems with virus for years. ...Two weeks ago, I received approximately twenty e-mails requesting the review and approval of Defending The Net articles published on other sites. I thoroughly review the e-mails to make sure they seem legitimate... more

The Rising Technical Challenges of Networking at Home

For me, one of the more interesting sessions at the recent IETF 81 meeting in July was the first meeting of the recently established Homenet Working Group. What's so interesting about networking the home? Well, if you regard challenges as "interesting", then just about everything is interesting when you look at networking in the home! more

The Insecurity of the IoT is Only Getting More Profound, Says Principal Researcher at F-Secure

"Three years after Mirai first appeared, and two years after WannaCry, it shows that we still haven't solved the problems leveraged in those outbreaks," said F-Secure Principal Researcher Jarno Niemela. more

DNS Amplification Attacks: Out of Sight, Out of Mind? (Part 1)

Geoff Huston's recent post about the rise of DNS amplification attacks offers excellent perspective on the issue. Major incidents like the Spamhaus attack Geoff mentions at the beginning of his post make headlines, but even small attacks create noticeable floods of traffic. These attacks are easy to launch and effective even with relatively modest resources and we see evidence they're occurring regularly. Although DNS servers are not usually the target of these attacks the increase in traffic and larger response sizes typically stress DNS infrastructure and require attention from operation teams. more