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Over the last few years I've been hearing some people claim that botnets are the real spam problem and that if you can find a sender then they're not a problem. Much of this is said in the context of hating on Canada for passing a law that requires senders actually get permission before sending email. Botnets are a problem online. They're a problem in a lot of ways. They can be used for denial of service attacks. They can be used to mine bitcoins... more
On Wednesday 22 February the United States and The Netherlands signed a "declaration of intent" on the cooperation on fighting cybercrime. This event was reported by the press as a treaty. At least that is what all Dutch postings I read wrote, with exception of the official website of the Dutch government. So what was actually signed? Reading the news reports some thoughts struck me. more
Phishing, stealing personal information by impersonating a trusted organization, is a big problem that's not going away. Most antiphishing techniques to date have attempted to recognize fake e-mail and fake web sites, but this hasn't been particularly effective. A more promising approach is to brand the real mail and real web sites. more
U.S. Senators Mark Warner, a Virginia Democrat, and Marco Rubio, a Florida Republican, both critics of China, have urged Canada to consider dropping China's Huawei Technologies from helping to build next-generation 5G telecommunications networks. more
The Internet of today is awash with networking protocols, but at its core lie a handful that fundamentally keep the Internet functioning. From my perspective, there is no modern Internet without DNS, HTTP, SSL, BGP, SMTP, and NTP. Of these most important Internet protocols, NTP (Network Time Protocol) is the likely least understood and has the least attention and support. Until very recently, it was supported (part-time) by just one person. more
Articles, blogs, and meetings about the internet of the future are filled with happy, positive words like "global", "uniform", and "open". The future internet is described in ways that seem as if taken from a late 1960's Utopian sci-fi novel: the internet is seen as overcoming petty rivalries between countries, dissolving social rank, equalizing wealth, and bringing universal justice. If that future is to be believed, the only obstacle standing between us and an Arcadian world of peace and harmony is that the internet does not yet reach everyone... more
The IETF is in the midst of a vigorous debate about DNS over HTTP or DNS over HTTPS, abbreviated as DoH. How did we get there, and where do we go from here? (This is somewhat simplified, but I think the essential chronology is right.) Javascript code running in a web browser can't do DNS lookups, other than with browser.dns.resolv() to fetch an A record, or implicitly by fetching a URL which looks up a DNS A or AAAA record for the domain in the URL. more
Australia is set to enhance its cybersecurity framework in response to recent widespread cyberattacks. The government has released its 2023 -- 2030 Cyber Security Strategy, aiming to position Australia among the top cyber-secure nations by 2030. more
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
"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
There may still be a few security practitioners working in the field who didn't have a copy of Bruce Schneier's Applied Cryptography on their bookshelf the day they started their careers. Bruce's practical guide to cryptographic algorithms, key management techniques and security protocols, first published in 1993, was a landmark volume for the newly emerging field, and has been a reference to developers ever since. more
Signing Email is now a Draft Standard! Signing email transitioned from a proposed standard to a draft standard (RFC6376 -- one of the new RFCs) over at the IETF a few days ago. The other is RFC6377. Let's go through a brief history of DKIM RFCs to refresh our memories... more
Hackers have commandeered approximately three million smart toothbrushes, transforming them into a botnet for launching a DDoS (Distributed Denial of Service) attack against a Swiss company's website, causing significant financial losses. more
Over the weekend and this morning, Microsoft, working in conjunction with others, issued civil lawsuits to sinkhole numerous domains associated with the Zeus botnet. When I say "botnet", I use the term loosely because Zeus is not a botnet in the sense that Rustock or Waledac is (or was). Rather, Zeus is a tool kit that online criminals can buy that lets them create phishing pages, perform fast fluxing, host drive-by downloads in addition to spamming. It's more like infrastructure than a botnet, although it does have a large botnet under its control. more
Mozilla was nominated as one of the three ISPAUK's 2019 Internet Villains for their proposed approach "to introduce DNS-over-HTTPS in such a way as to bypass UK filtering obligations and parental controls, undermining internet safety standards in the UK." more
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