Security

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 IPv6 represents new territory for most Internet stakeholders, and its rollout will introduce some unique security challenges.

Security / Recently Commented

Liberty Reserve Now, Bitcoin Next?

The papers have been abuzz with the shutdown of Liberty Reserve, an online payments system, due to accusations of large scale money laundering via anonymous transactions. Many people have noted similarities between LR and Bitcoin and wonder whether Bitcoin is next. I doubt it, because with Bitcoin, nothing is anonymous. more»

How to Stop the Spread of Malware? A Call for Action

On Webwereld an article was published following a new Kaspersky malware report Q1-2013. Nothing new was mentioned here. The Netherlands remains the number 3 as far as sending malware from Dutch servers is concerned. At the same time Kaspersky writes that The Netherlands is one of the most safe countries as far as infections go. So what is going on here? more»

How Will Banks Ensure the Safety of Our Money? DDoS Attacks on NL Banks

This week bank costumers of The Netherlands were shocked when they realised that online banking may not be as safe as they thought. Perhaps some were surprised to hear that what they think is money, is nothing but digits, something that does not exist. Their money only exist because we all act as if it exists and accept transactions between each other aided by software run by banks, if they haven't outsourced that function. more»

Open DNS Resolvers - Coming to an IP Address Near You!

Three vectors were exploited in the recent DDoS attack against Spamhaus: 1) Amplification of DNS queries through the use of DNSSEC signed data; 2) Spoofed source addresses due to lack of ingress filtering (BCP-38) on originating networks; 3) Utilisation of multiple open DNS resolvers While. 1) is unavoidable simply due to the additional data that DNSSEC produces, and 2) "should" be practised as part of any provider's network configuration, it is 3) that requires "you and I" ensure that systems are adequately configured.  more»

Verisign Doesn't Think the Net Is Ready for a Thousand New TLDs

Yesterday Verisign sent ICANN a most interesting white paper called New gTLD Security and Stability Considerations. They also filed a copy with the SEC as an 8-K, a document that their stockholders should know about, It's worth reading the whole thing, but in short, their well-supported opinion is that the net isn't ready for all the new TLDs, and even if they were, ICANN's processes or lack thereof will cause other huge problems. more»

The Spamhaus Distributed Denial of Service - How Big a Deal Was It?

If you haven't been reading the news of late, venerable anti-spam service Spamhaus has been the target of a sustained, record-setting Distributed Denial-of-Service (DDoS) attack over the past couple of weeks... Of course, bad guys are always mad at Spamhaus, and so they had a pretty robust set-up to begin with, but whoever was behind this attack was able to muster some huge resources, heretofore never seen in intensity, and it had some impact, on the Spamhaus website, and to a limited degree, on the behind-the-scenes services that Spamhaus uses to distribute their data to their customers. more»

End of the World/Internet on 31-March-2012?

Well... Maybe not the world, but the Internet it seems. According to a Pastebin letter, Anonymous announced they will black-out Internet on 31st of March. They even explained how to do it by attacking the DNS Root Servers on Internet using a reflected amplification attack. If this is successful, the root DNS servers will become unresponsive and cannot handle any other requests... more»

SQL Injection in the Wild

As attack vectors go, very few are as significant as obtaining the ability to insert bespoke code in to an application and have it automatically execute upon "inaccessible" backend systems. In the Web application arena, SQL Injection vulnerabilities are often the scariest threat that developers and system administrators come face to face with (albeit way too regularly). more»

IPv6: SAVA, Ca va pas?

Sender Address Validation and Authentication (SAVA) is the silver bullet. It will send to Cyberia all dark forces that make us shiver when we make a purchase on the internet, pose a threat to our very identities and have made DDoS a feared acronym. Some of you will remember the heated debates when Calling Line Identification (CLID) was first introduced in telephony. Libertarians of all stripes called passionately to ban such an evil tool... more»

Pandora's Box - New US Cyber Security Bills Create a Worm Hole in the Internet Galaxy

There are two Bills that are floating through the corridors of power on the Hill that could potentially change the course of civil and political rights within the United States and the world. One was introduced through the House of Representatives and the other through the Senate. The two Bills touch on a common thread that are premised on "national security" however there are interesting challenges that will surface should the Bills be passed that affect global public interest that require further examination, introspection and discussion. more»

Reducing the Risks of BYOD with DNS-Based Security Intelligence; Part 1: Understanding the Risks

Ah, BYOD. How I love thee. BYOD, or "Bring Your Own Device", gives me choices. I can use a device at work I actually like and am most effective with. (How did I ever get by without my iPad?) But BYOD comes with challenges. Personal devices can be infected with malware. Once they're connected to an enterprise's network, they can be controlled by a bot master to hijack enterprise resources and wreak havoc as part of a botnet. more»

Follow a Phishing Case in Real Time: postfinances.com / Swiss Post

It is just another phishing case. Why should I care? I happened to receive my own copy of the phishing email message. Most Internet users will just smile bitterly before deleting it. I checked it to see why it had gone through the spam filters. It had no URL in the text but a reply-to address. So it needed a valid domain name, and had one: postfinances.com. PostFinance (without trailing "s") is the payment system of the Swiss Post. It has millions of users. more»

IPv6 Presents a Security Paradox for the Network

The capabilities IPv6 provides will enhance online security, but the shift to the new Internet address scheme may also present risks if not properly managed. Previously, Internet security was largely an after-thought for the early Internet, as its primary purpose was to facilitate open, end-to-end, any-to-any communications and information exchange for bridging and accelerating research efforts. Today, we have a much more complex online ecosystem that spans billions of users across the globe and serves not only as an engine for e-commerce, but as an engine for all commerce. more»

Three New Cyber Security Threats in One Day

Internet crooks never cease to surprise me. The inventiveness in being bad is super. If these guys lent their thinking power to the economy, the economic crisis would be solved within a week. Today I ran into three brand new cyber security threats that were reported on. In one day. So I thought to share them with you. more»

Why Vint Cerf is Wrong

At the Internet Governance Forum in Baku, I made an intervention on behalf of NL IGF, reporting on the recommendations given by the participants of Workshop 87... I concluded that more regulatory and law enforcement bodies need to become part of the IGF discussions, as they are an integral part of governing the Internet from a safety and security perspective. Mr. Cerf responded with a one-liner: "I can't help observing, if we keep the regulatories confused, maybe they will leave us alone". more»