Cyberattack

Network Security: How Attackers Gain Access from Inside

Most people - mistakenly - believe that they are perfectly safe behind a firewall, network address translation (NAT) device or proxy. The fact is quite the opposite: if you can get out of your network, someone else can get in. Attackers often seek to compromise the weakest link in a network and then use that access to attack the network from the inside, commonly known as a "pivot-and-attack." more

How Safe is FttH?

My blog 'What PRISM, credit card hacking and Chromecast have to do with FttH' led to some very interesting discussions all around the world. One of issues that was discussed was that the sheer capacity of FttH will also allow hackers, criminals and others to use that massive capacity for the wrong reasons. Its volume will make it increasingly difficult to police. more

The World of Internet Threats Is Constantly Changing

The world of Internet threats has changed continually over the years. From the time that a "worm" first showed up in the wild, or whenever someone penetrated a system without authorization for the first time, various forms of attacks and malware have presented dangers to the system and those who use it. Different vectors have received varied focus over the years... Many parts of the Internet community have been involved in addressing relevant issues and fostering efforts to combat them. more

Tactics for Responding to Cyber Attacks - Squeezing Your Cyber Response-Curve: Part 2

In part one of this post we introduced the cyber response curve. In this post, we have outlined some observations which illustrate how different level of maturity and approaches can affect your cyber response curve. more

Tactics for Responding to Cyber Attacks - Squeezing Your Cyber Response-Curve: Part 1

Many cyber attacks against companies today go unreported, and more still are undetected... Timing and context are everything. The faster a company identifies a problem, and the faster and deeper it is understood and its relevance to the business, the more effectively the company can respond. We call this squeezing the cyber response curve. This two-part post will discuss the current state of cyber threats, what the cyber response curve is and its impact your organization and how you can effectively squeeze this curve to improve attack response. more

What Smaller Institutions Can Learn from DDoS Attacks on Big Banks

Since last fall, several waves of distributed denial of service (DDoS) attacks have targeted major players in the U.S. banking industry. JPMorgan Chase, Wells Fargo and PNC were among the first to sustain intermittent damage. Eventually, the top 50 institutions found themselves in the crosshairs... In the months to come, security experts would praise the banks' collective response, from heightened DDoS protection to candid customer communications.. these larger institutions have learned some painful lessons that smaller firms might heed as they seek to minimize risks. more

How to Prepare for the Day When Your Domain(s) Are Misbehaving

For a number of years, there have been many different high profile incidents where major websites were defaced, taken offline, or crippled due to issues related to their domain registration. Last night, there was an incident where several high profile domains went offline due to issues at their registrar, and they are now coming back online after what I am sure was a few crazy hours for their operations teams and management. more

Multi-Layer Security Architecture - Importance of DNS Firewalls

In today's world with botnets, viruses and other nefarious applications that use DNS to further their harmful activities, outbound DNS security has been largely overlooked. As a part of multi-layer security architecture, a DNS Firewall should not be ignored. After serving as a consultant for multiple organizations, I have encountered many companies that allow all internal devices to send outbound DNS queries to external DNS servers - a practice that can lead to myriad problems. more

Arrest Made in Connection to Spamhaus DDoS Case

According to a press release by the Openbaar Ministerie (the Public Prosecution Office), a dutch man with the initials SK has been arrested in Spain for the DDoS attacks on Spamhaus. more

Correlation Between Country Governance Regimes & Reputation of Their Internet Address Allocations

We recently analyzed the reputation of a country's Internet (IPv4) addresses by examining the number of blacklisted IPv4 addresses that geolocate to a given country. We compared this indicator with two qualitative measures of each country's governance. We hypothesized that countries with more transparent, democratic governmental institutions would harbor a smaller fraction of misbehaving (blacklisted) hosts. The available data confirms this hypothesis. A similar correlation exists between perceived corruption and fraction of blacklisted IP addresses. more

Don’t Blame Open Recursives For DDoS Attacks and Why You Should Implement BCP38

There has been plenty of buzz and chatter on the Internet recently concerning a very large DDoS attack against CloudFlare, with coverage on their blog, the New York Times, and the BBC, among many others. While attacks of this nature are certainly nothing new, the scale of this attack was surprising, reported to hit 120Gbps. For a sense of scale, your average cable modem is only about 20Mbps, or about 0.016% of that bandwidth. more

U.S. CERT Issues Alert on DNS Amplification Attacks

Neil Schwartzman writes to report that U.S. Cert issued Alert TA13-088A on Friday March 29, 2013. "It is a solid how-to guide to test for, and remediate DNS configurations that can be used for Distributed Denial of Service attacks." more

Research Group Releases International Law on Cyber Warfare Manual

The newly released handbook applies the practice of international law with respect to electronic warfare. The Tallinn Manual on the International Law Applicable to Cyber Warfare -- named for the Estonian capital where it was compiled -- was created at the behest of the NATO Co-operative Cyber Defence Centre of Excellence, a NATO think tank. It takes current rules on battlefield behaviour, such as the 1868 St Petersburg Declaration and the 1949 Geneva Convention, to the internet, occasionally in unexpected ways. more

North Korea Suffers Internet Outage, U.S. Blamed

According to reports, North Korea has accused the United States for conducting a cyberattack that has disrupted Internet connectivity in the country. "While the details of the cause of the disruption are unknown, we can confirm that in the last two days, North Korea's sole Internet provider has, in fact, suffered from disruptions in connectivity to the global Internet," reports Doug Madory from Renesys. more

ICANN Releases Guideline for Coordinated Vulnerability Disclosure Reporting

ICANN has released a set of guidelines to explain its Coordinated Vulnerability Disclosure Reporting. The guidelines serve two purposes, says ICANN: "They define the role ICANN will perform in circumstances where vulnerabilities are reported and ICANN determines that the security, stability or resiliency of the DNS is exploited or threatened. The guidelines also explain how a party, described as a reporter, should disclose information on a vulnerability discovered in a system or network operated by ICANN." more