The Domain Name System (DNS) is the cornerstone of communication for the internet. Navigating to the sites you access every day often starts with a DNS request. Cybercriminals recognize the value of DNS and may look for ways to abuse improperly secured DNS to compromise its uptime, integrity or overall response efficacy—which makes DNS an important area for enforcing security and protecting against threats.
The Domain Name System (DNS), if not properly secured, may be susceptible to abuse by malicious actors. Cybercriminals recognize the value of DNS availability and look for ways to compromise DNS uptime and the DNS servers that support it. As such, DNS becomes an important point of security enforcement and a potential point in the Cyber Kill Chain®1 for many cyber-attacks.
This blog discusses one such threat, DNS reflection and amplification attacks.
To establish connectivity with other users and devices, almost anything that interfaces with the internet depends on the accuracy, integrity and availability of the Domain Name System (DNS). Most online transactions and data movement are critically dependent on DNS services.
As such, DNS is an important point of security enforcement and a potential point in the Cyber Kill Chain for many cyber-attacks. Organizations are beginning to recognize this and are using DNS security mechanisms as a first line of defense for preventing or mitigating online threats.
Verisign is excited to announce that its easy-to-configure, cloud-based, recursive DNS filtering service, Verisign DNS Firewall, is now certified to run on Microsoft Azure. This service will help protect your Microsoft Azure virtual machines from malware command-and-control traffic and navigation to undesirable websites.
Verisign is pleased to announce that we qualified for the Online Trust Alliance’s (OTA) 2017 Honor Roll for showing a commitment to best practices in security, privacy and consumer protection. This is the fifth consecutive year that Verisign has received this honor.
The OTA is an initiative within the Internet Society (ISOC) with the mission to promote best practices for online trust. Now in its ninth year, the 2017 OTA audit analyzed nearly 1,000 websites across multiple industry segments, evaluating the websites for consumer protection, security and privacy protection practices, and has been embraced by organizations worldwide as an objective benchmark report.
Verisign is pleased to announce that we qualified for the Online Trust Alliance’s (OTA) 2016 Honor Roll for showing a commitment to best practices in security, privacy and consumer protection. This is the fourth consecutive year that Verisign has received this honor.
Security professionals agree that a strong security posture is one that is implemented in a layered approach. This layered approach is also referred to as “defense-in-depth.” A defense-in-depth strategy consists of applying security mechanisms across your organization to ensure sufficient coverage against the wide variety of cyber threats.
A comprehensive defense-in-depth strategy requires security mechanisms to be applied through the implementation of hardware, software and security policies. Hardware protection includes, but is not limited to, the implementation of next generation firewalls (NGFW), intrusion prevention systems/intrusion detection systems (IPS/IDS) and secure Web gateways (SWG). Software-based protection is done through anti-virus software deployments, automated patch management or tools for Internet monitoring. Finally, no defense-in-depth strategy would be complete without the implementation of strong security policies that prescribe processes for incident reporting, service and system audits, and security awareness training.
Cybersecurity is no longer a concern for just IT and security professionals. Recent breaches at organizations like Sony, Target, JP Morgan Chase, and numerous U.S. government entities have brought the issue of cyber-attacks very close to home. If you bank online, use your debit card at a local store or engage in any activity that relies on an Internet-connected system, you are at risk.
As part of National Cyber Security Awareness Month (NCSAM), Verisign is joining with organizations and companies around the country to promote online safety and champion a safer, more secure and trusted Internet. Every week in October, we’ll share research and online safety tips from our resident cybersecurity experts via our blog and LinkedIn, Facebook and Twitter posts.
At Verisign we take our Internet stewardship mission very seriously, so when details emerged over the past week concerning the XcodeGhost infection, researchers at Verisign iDefense wanted to help advance community research efforts related to the XcodeGhost issue, and leveraging our unique capabilities, offer a level of public service to help readers determine their current and historical level of exposure to the infection.
First identified in recent days on the Chinese microblog site Sina Weibo, XcodeGhost is an infection of Xcode, the framework developers use to create apps for Apple’s iOS and OS X operating systems. Most developers download secure Xcode from Apple. However, some acquire unofficial versions from sites with faster download speeds.
Apps created with XcodeGhost contain instructions, unknown to both the app developers and the end users, that collect potentially sensitive information from the user’s device and send it to command-and-control (C2) servers managed by the XcodeGhost operator. This way, the XcodeGhost operators circumvented the security of Apple’s official Xcode distribution, and the security of Apple’s App Store.
The infection had widespread impact. As of September 25th, Palo Alto Networks and Fox-IT had identified more than 87 infected apps by name, and FireEye claimed to have identified more than 4,000 infected apps. This activity impacts millions of users both in China and elsewhere in the world. To understand key aspects of the infection, iDefense researchers leveraged authoritative DNS traffic patterns to the C2 domains.
There are two types of information that can be found online about you: the information you intentionally post and the information that is automatically collected.
The information that you intentionally post is what you want everyone to know about you. Your professional life is documented on LinkedIn. Your social activities with friends and family are chronicled on Facebook. You alert the world of your immediate thoughts on Twitter. You even choose to provide your address and credit card information when buying things online. All of this personal information about you is deliberately posted and collected with your consent.