In the wake of increasingly lenient bring your own device (BYOD) policies within large corporations, there's been a growing emphasis upon restricting access to business applications (and data) to specific geographic locations. Over the last 18 months more than a dozen start-ups in North America alone have sprung up seeking to offer novel security solutions in this space - essentially looking to provide mechanisms for locking application usage to a specific location or distance from an office, and ensuring that key data or functionality becomes inaccessible outside these prescribed zones. more
Mobile networks aren't usually thought of as sources of spam, but a quick look at some of the resources that track spam reveals they actually are. This is counter intuitive at first glance because when most people think of mobile they think of smartphones, and those aren't known to be sources of spam (at least not yet). What's really going on is PCs connected to mobile networks with air cards, or tethered with a smartphone where it's permissible, are the culprits more
Google in partnership with the University of Michigan and the University of Illinois, has published the results of a multi-year study that measured how email security has evolved since 2013. Although Gmail was the foundation of the research, insights from the study are believed to be applicable to email more broadly. more
In this multipart series I will be presenting some of the leading industry-standard best practices for enterprise network security using Cisco technologies.... "Wisdom consists in being able to distinguish among dangers and make a choice of the least harmful." That quote is quite possibly the most accurate depiction possible of the never-ending struggle between network security and corporate budget. Providing a mechanism to defend the enterprise network from every conceivable threat is impossible in terms of both technology and funding. more
I pulled together some statistics on my collection of botnet statistics for the period of time between Rustock being shut down and Wednesday, April 6. I wanted to see the distribution of botnets per country - now that Rustock is down, which country has the most botnet infections (as measured by unique IP addresses that send us spam)? more
Because the speed of DNS is so important to the performance of any connection on the 'net, a lot of thought goes into making DNS servers fast, including optimized software that can respond to queries in milliseconds, and connecting DNS servers to the 'net through high bandwidth links. To set the stage for massive DDoS attacks based in the DNS system, add a third point: DNS responses tend to be much larger than DNS queries. more
The Canadian Internet Registration Authority (CIRA) for the .ca country code Top-Level Domain yesterday announced the launch of a test-bed initiative for DNSSEC. CIRA’s Chief Information Officer, Norm Ritchie who made the official announcement at the SecTor security conference in Toronto, says it began the process of implementing DNSSEC in early 2009 and the implementation date is set for 2010. So far, over 15 Top-Level Domains have already deployed DNSSEC including dot-gov and dot-org. more
During the 4th quarter of 2014, a record number of malware variants were detected -- an average of 255,000 new threats each day, according a recent report by Anti-Phishing Working Group (APWG). The group further reports that the number of unique phishing reports submitted to APWG during Q4 was 197,252 -- an increase of 18 percent from the 163,333 received in Q3 of 2014. more
Encryption is a way to keep private information private in the digital world. But there are government actors, particularly here in the US, that want access to our private data. The NSA has been snooping our data for years. Backdoors have been snuck into router encryption code to make it easier to break. Today at M3AAWG we had a keynote from Kim Zetter, talking about Stuxnet and how it spread well outside the control of the people who created it. more
Just as we started the new year, the U.S. Department of Homeland Security's Cybersecurity and Infrastructure Security Agency's (CISA) issued an alert. On January 6, 2020 , they warned of domain name system (DNS) hijacking and other cyber threats that may be used by nation-state threat actors to disrupt business activity and take control of vital internet assets. A familiar refrain heard in 2019 now repeating in 2020. more
Major US bank Capital One Financial Corporation confirmed Monday evening that unauthorized access was made by an outside individual who obtained "certain types of personal information" on credit card products and Capital One credit card customers. more
The Internet is chock full of really helpful people and autonomous systems that silently probe, test, and evaluate your corporate defenses every second of every minute of every hour of every day. If those helpful souls and systems aren't probing your network, then they're diligently recording and cataloguing everything they've found so others can quickly enumerate your online business or list systems like yours that are similarly vulnerable to some kind of attack or other. more
Today at the RIPE 67 event in Athens, Greece, IETF Chair Jari Arkko gave a presentation on "Pervasive Monitoring and the Internet" where he spoke about the ongoing surveillance issues and: What do we know? What are the implications? What can we do? Similar to his earlier article on the topic, Jari looked at the overall issues and spoke about how Internet technology should better support security and privacy. more
Recently we've seen several examples of likely state sponsored security incidents of which the appropriateness was later strongly debated. Incidents such as states impacting commercial enterprises during cyber attacks; purported sabotage of critical infrastructure, and attacks on civilian activists have all, to a greater or lesser degree, led to concerns being raised by both civilian watchdog groups, academics, technologists and governments. more
With the COVID-19 pandemic persisting, online shopping will be the preferred method for the 2020 holiday shopping season. While staying home to shop is the safest option right now, it means consumers are more vulnerable to online fraud, counterfeits, and cyber crime. Increased online activity provides opportunities for unscrupulous infringers to abuse trusted brand names to drive visitors to their own fraudulent content. more