Cyber Security

From QR Code to Compromise: The Growing Threat of “Quishing”

Published

4 months ago

November 19, 2024

Sophos has released the results of Sophos X-Ops research on a new type of threat: quishing. This new attack vector involves the use of fraudulent QR codes, emailed by threat actors, to bypass the phishing security measures put in place by companies. This fraudulent QR code, embedded in a PDF document attached to an email, takes the form of a message about payroll, employee benefits, or other forms of official paperwork a business might send to an employee.

Because QR codes are not readable by computers, the employee must scan the QR code using their mobile phone. The QR code links to a phishing page, which the employee may not recognize as malicious since phones usually are less protected than computers. The goal of the attackers is to capture employees’ passwords and their multi-factor authentication (MFA) tokens to access a company’s system by bypassing the security measures in place.

“We spent a considerable amount of time sifting through all the spam samples we had to find examples of quishing,” comments Andrew Brandt, principal researcher at Sophos X-Ops. “Our research has revealed that attacks that exploit this specific threat vector are intensifying, both in terms of volume and sophistication, especially when it comes to the appearance of the PDF document.

In addition to social engineering tactics, the quality of emails, attachments and QR code graphics, these attacks seem to be growing in terms of organization as well. Indeed, some malicious actors now offer as-a-service tools to run phishing campaigns using fraudulent QR codes. In addition to features such as CAPTCHA bypasses or the generation of IP address proxies to bypass automated threat detection, these criminal organizations provide a sophisticated phishing platform that can capture the credentials or MFA tokens of targeted individuals.

To encourage organizations to better protect systems against this type of attack, Sophos X-Ops shares a list of recommendations:

Be vigilant about internal emails about HR topics, salaries or company benefits: Sophos X-Ops’ research has found that social engineering tricks exploit these themes to trick employees into scanning fraudulent QR codes from their mobile devices.
Monitor risky sign-ins: Using identity management tools, organizations can detect unusual sign-in activity.
Enable Conditional Access: This feature helps enforce access controls based on the user’s location, device status and risk.
Enable effective access monitoring thanks to sophisticated logs: this type of advanced monitoring allows you to better visualize all access to the system and detect this type of threat in time.
Implement advanced email filtering: There are QR code phishing protection solutions that detect fraudulent QR codes included directly in emails and plans to expand its solution to QR codes in attachments.
Encourage employees to be vigilant and report incidents: Prompt reporting of anomalies to the incident response team is essential to protect company systems from phishing.
Revoke suspicious user sessions: It is imperative to have a plan in place to revoke user access that shows signs of compromise.

Cyber Security

Positive Technologies Discovery Leads D-Link to Recommend Router Replacements

Published

1 day ago

March 19, 2025

Priyan Sampath

Vladimir Razov, an expert from the PT SWARM team, has discovered a vulnerability in several models of D-Link routers. According to Mordor Intelligence, D-Link is one of the top three Wi-Fi router manufacturers in the world. The vendor has been notified of the threat in line with the responsible disclosure policy and recommends that users switch to more recent devices.

The vulnerability, which is registered as BDU:2024-06211 with a CVSS 3.0 score of 8.4, affects the following D-Link models: DIR-878, DIR-882, DIR-2640-US, DIR-1960-US, DIR-2660-US, DIR-3040-US, DIR-3060-US, DIR-867-US, DIR-882-US, DIR-882/RE, DIR-882-CA, and DIR-882-US/RE. At the time of the research, vulnerable routers could be discovered using search engines in the United States, Canada, Sweden, China, Indonesia, and Taiwan.

According to the manufacturer, these models are no longer supported. D-Link recommends retiring the outdated devices and replacing them with supported devices that receive firmware updates. “If this vulnerability is successfully exploited, a malicious user authorized in the router’s web interface can compromise the entire device and gain access to all traffic passing through it,” says Vladimir Razov, Web Application Security Analyst at PT SWARM, the offensive security department at Positive Technologies.

As a temporary measure to mitigate the threat, Vladimir Razov recommends using OpenWrt (an open-source embedded operating system based on the Linux kernel and designed specifically for routers) or changing the login credentials for accessing the router’s web interface. Previously, Positive Technologies helped address vulnerabilities in Zyxel routers and other Zyxel devices. Positive Technologies also enhanced its PT Industrial Security Incident Manager (PT ISIM) with an additional expertise pack, enabling cybersecurity teams to detect attempts to exploit vulnerabilities in MikroTik routers and Cisco switches.

Cyber Security

Sophos Study: MDR Users Claim 97.5% Less in Cyber Insurance

Published

2 days ago

March 18, 2025

Chris Fernando

Leading cybersecurity provider Sophos has released findings from a new study quantifying the financial impact of various cybersecurity controls on cyber insurance claims. The research compares the effect of endpoint solutions, EDR/XDR technologies, and MDR services on claim amounts, offering valuable insights for both insurers and organizations.

Sally Adam, Senior Director, Solution Marketing at Sophos, said, “Every year, organisations spend huge amounts of money on their cybersecurity. By quantifying the impact of controls on the outcome of cyberattacks, this study enables them to focus their investments on the most cost-effective options. At the same time, insurers have a major influence on cybersecurity spending through the controls they require of organisations wishing to be covered and the discounts they offer when a given scheme is in place. This study enables them to encourage investments that can make a real difference to incident outcomes and the resulting claim amounts.”

The Sophos study reveals a dramatic difference in cyber insurance claims: organizations using MDR services claim a median compensation of just $75,000, a staggering 97.5% less than the $3 million median claimed by organizations relying solely on endpoint solutions. This means that endpoint-only users typically claim 40 times more in the event of an attack. The study attributes this significant reduction to the rapid threat detection and blocking capabilities of MDR services, which can effectively prevent extensive damage.

The study also highlights a clear benefit to combining EDR or XDR with endpoint solutions, as the average insurance claim for users of these tools is just $500,000, which is one-sixth of the $3 million average claim for those using only endpoint solutions.

The Sophos study indicates that the predictability of cyber insurance claims varies significantly depending on the security controls in place. Claims from organizations utilizing MDR services show the highest predictability, suggesting consistent and reliable threat mitigation. This is likely due to the 24/7 expert monitoring, investigation, and response that allows for swift action against threats at any time. Conversely, claims from users of EDR/XDR tools are the least predictable, implying that their effectiveness in preventing major damage heavily depends on the user’s expertise and speed of response.

The Sophos study also reveals significant differences in recovery times from ransomware attacks. Endpoint solution users average a 40-day recovery, while EDR/XDR users take the longest at 55 days. In stark contrast, organizations using MDR services recover the fastest, with an average downtime of just three days. These findings underscore MDR’s effectiveness in minimizing the impact of cyberattacks and highlight the less predictable recovery experiences associated with EDR/XDR tools, whose success is dependent on user expertise.

Adam concludes, “The research confirms what many people instinctively know: the type of security solution used has a significant impact on cyber insurance claims. Cyberattacks are inevitable, but defences are not. These results are a useful tool for organisations wishing to optimise their cyber defence and their return on investment in cybersecurity. They will also be useful for insurers looking to reduce their exposure and offer suitable policies to their customers.”

Cyber Security

Fortinet Strengthens OT Security for Critical Infrastructure

Published

2 days ago

March 18, 2025

Chris Fernando

Fortinet has enhanced its OT Security Platform to better protect critical infrastructure from modern cyberthreats. The upgraded platform offers more than basic OT visibility with the new FortiGuard OT Security Service, expanded hardened solutions for network segmentation and 5G in demanding environments, and an improved OT SecOps portfolio for automated threat response and compliance management.

“Fortinet has been building an industry-leading OT Security Platform for 20-plus years and remains at the forefront of OT security innovation,” said Nirav Shah, Senior Vice President, Products and Solutions at Fortinet. “As cyberthreats against critical infrastructure and across industries such as energy, transportation, and manufacturing continue to grow, Fortinet remains committed to delivering comprehensive security solutions tailored for operational technology environments. These latest enhancements give organizations the tools they need to improve their OT security posture and adhere to regulatory requirements—all managed through a single, unified platform.”

The latest Fortinet OT Security Platform enhances OT security with:

Advanced Threat Protection: New FortiGate Rugged NGFWs combined with the enhanced FortiGuard OT Security Service offer superior security enforcement, detecting threats using over 3,300 OT protocol rules, nearly 750 OT IPS rules, and 1,500 virtual patching rules. This protects against known exploited vulnerabilities and provides virtual patching for older OT systems. Secure remote access is also improved with updates to FortiSRA, including enhanced secrets and password management.
Secure Segmentation: The new FortiSwitch Rugged 108F and FortiSwitch Rugged 112F-POE industrial-grade switches enable precise security control at the port level, preventing unauthorized lateral movement within OT networks. Built on Fortinet’s unified FortiOS, these switches simplify network and security management.
Resilient Connectivity: Two new ruggedized 5G solutions are introduced: the IP67-rated FortiExtender Rugged 511G for secure, high-speed connectivity to remote OT sites, and the IP64-rated FortiExtender Vehicle 511G for fleet vehicles. Both feature embedded Wi-Fi 6 and new eSIM capabilities for easier carrier selection.
Enhanced OT SecOps: Fortinet’s AI-driven security operations capabilities are strengthened with updates to FortiAnalyzer 7.6 and FortiDeceptor 6.1, offering deeper threat insights and simplified compliance reporting for OT security teams. FortiNDR Cloud now includes OT protocol support for threat hunting, while FortiNDR (on-premises) adds features like a Purdue Model view and a device inventory covering OT and the Mitre ATT&CK ICS Matrix.

The Fortinet OT Security Platform delivers a unified view and comprehensive security tools to simplify the management of OT and remote site security. It empowers organizations to easily assess, secure, and report on risks, including meeting complex regulatory compliance. Fortinet uniquely offers seamless segmentation and a complete ruggedized portfolio of OT security solutions all managed by a single operating system, FortiOS. Its deep integration within the Fortinet Security Fabric makes it a leading platform in the industry, providing an effective, efficient, and holistic approach to OT security and compliance that surpasses standard offerings.