Duo's Security Blog

DECEMBER 21, 2021

The Remote Desktop Protocol (RDP) feature for the Duo Network Gateway prompts users to authenticate only when necessary, instead of first having them try and fail, forcing them to try again after logging into the company’s virtual private network (VPN). For instance, if the company name is “Example, Inc.”

VPN 109

VPN Authentication DNS Architecture 109

Malwarebytes

OCTOBER 16, 2022

It’s been discovered that in certain circumstances, some of your traffic is leaked so it ends up outside of the safety cordon created by the VPN. At least one Google engineer claims that this isn’t a major concern, is intended functionality, and will continue as is for the time being.

VPN 97

VPN DNS Encryption Engineering 97

Malwarebytes

APRIL 4, 2024

Most of the malicious search ads we have seen have originated from Google, but threat actors are also abusing other search engines. In this blog post, we look at a very recent malvertising campaign impersonating the popular VPN software NordVPN. This is true here as well, where we have a redirect to besthord-vpn[.]com

VPN 111

VPN Advertising DNS Malware 111

Cisco Security

DECEMBER 14, 2022

Further enhancements to Cisco’s Encrypted Visibility Engine (EVE), first launched a year ago in 7.1, Remote Access VPN Dashboard. Hybrid work is the new normal, to complement our best-in-class Remote Access VPN Capabilities inside Cisco Secure Firewall, release 7.3 Additional Site-To-Site VPN Capabilities.

Firewall 145

Firewall VPN Encryption DNS 145

SecureList

JULY 9, 2024

Data objects and data components are typically informative enough for the engineer or analyst working with data sources to form an initial judgment on the specific sources that can be used. The engineer or analyst can review available sources and match events with data objects and data components.

Engineering 116

Engineering DNS Technology Accountability 116

Hacker's King

OCTOBER 8, 2024

In this article, we unveil the ultimate Jio VPN trick that will take your internet usage to the next level. Our tried and tested Jio VPN trick is effective and incredibly easy to implement. Say goodbye to internet limitations, and say hello to unlimited possibilities with Jio VPN. This is where the Jio VPN trick comes into play.

VPN 52

VPN Internet Internet Encryption 52

eSecurity Planet

FEBRUARY 19, 2024

Appliances with affected software must have Anyconnect SSL VPN enabled on whichever interface is exposed to the internet for an attack to occur. February 19, 2024 ExpressVPN Split Tunneling Disabled after Discovered Vulnerability Type of vulnerability: DNS traffic leak. Changing passwords, secrets, and pre-shared keys.

VPN 113

VPN DNS Ransomware Software 113

Zero Day

JUNE 12, 2025

  As one software engineer put it, " How can Google Cloud, AWS, and Cloudflare all be down at the same time? There are no reports of troubles with the Domain Name System (DNS) or Border Gateway Protocol (BGP). "All the respective engineering teams are actively engaged and working on service recovery.

Internet 108

Internet Internet Password Management Small Business 108

eSecurity Planet

JANUARY 14, 2022

The combination of Prolexic, Edge DNS, and App & API Protector would be recommended for the highest quality of DDoS mitigation to keep applications, data centers, and internet-facing infrastructure (public or private) protected. It is architected for nonstop DNS availability and high performance, even across the largest DDoS attacks.

DDOS 127

DDOS DNS Firewall Media 127

eSecurity Planet

MARCH 25, 2022

In November 2021, an unauthorized third party called a Robinhood customer support employee and, through social engineering , gained access to the company’s customer support systems. The Remote Access VPN enables more robust security with the encryption of transmitted data, system compliance scanning, and multi-factor authentication.

VPN 120

VPN Software Authentication Encryption 120

eSecurity Planet

MAY 28, 2021

Whether it’s a VPN , firewall , or remote access server, unauthorized entry via network gateways is a problem. Initial access methods for gateways dominate the Dark Web market, with 45% using traditional initial access like RDP , VPN, and RCE. Also Read: How to Prevent DNS Attacks. Supply Chain Attacks.

Software 119

Software DNS Firmware VPN 119

Zero Day

JUNE 10, 2025

For example, you could have a network for your kids with parental controls, one for smart home devices, and one for VPNs. Just to name a few, you have Safe Browsing to protect you from malware online, DNS (domain name system) encryption to cover your digital footprint, plus an ad blocker. Online security is another large aspect.

Password Management 93

Password Management Small Business Internet Internet 93

eSecurity Planet

SEPTEMBER 29, 2021

Free VPN with up to 300 MB of traffic per day. Secure VPN to enable browsing anonymously and securely with a no-log feature. In addition to malware detection and removal, it offers unlimited VPN traffic and priority support. Unlimited, secured VPN traffic for online privacy. Linking engine remediation.

Ransomware 109

Ransomware Backups VPN Malware 109

Zero Day

JUNE 13, 2025

There were no reports of troubles with the Domain Name System (DNS) or Border Gateway Protocol (BGP). ET, Google engineers identified the root cause of the issue, but the problem wasn't fully resolved. Internet traffic was proceeding as usual. The incident started around 1:49 p.m. ET, according to Google. By 3:41 p.m.

Password Management 98

Password Management Small Business Artificial Intelligence Digital transformation 98

eSecurity Planet

MAY 19, 2022

With Aruba, clients can also bundle SD-WAN coverage with the company’s security solutions for virtual private network ( VPN ), network access control ( NAC ), and unified threat management ( UTM ). EdgeConnect Enterprise critically comes with firewall , segmentation , and application control capabilities. Features: Versa SASE.

Firewall 120

Firewall Architecture Encryption Network Security 120

Hacker's King

SEPTEMBER 2, 2024

YAML-Configurable Correlation Engine: It has a YAML-configurable engine with 37 rules for advance data correlation and identification of patterns. DNS Twist is a powerful tool that helps organizations alleviate this problem through analyzing domain names differences.

Penetration Testing 52

Penetration Testing DNS Phishing Architecture 52

eSecurity Planet

SEPTEMBER 26, 2023

FortiSASE User Subscriptions The basic user subscription for the FortiSASE product provides secure internet access through SSL inspection, inline antivirus, inline sandbox, intrusion prevention systems (IPS), botnet command and control protection, inline CASB, inline DLP, website filtering, and DNS address filtering. Mbps of bandwidth.

Firewall 98

Firewall DNS Technology Antivirus 98

Cisco Security

AUGUST 28, 2023

XDR (eXtended Detection and Response) Integrations At Black Hat USA 2023, Cisco Secure was the official Mobile Device Management, DNS (Domain Name Service) and Malware Analysis Provider. With the 10G capable broker node deployed it was time to install a special plugin from engineering. iPhone Mail using IMAP to authenticate.

Wireless 94

Wireless DNS Mobile Technology 94

eSecurity Planet

FEBRUARY 25, 2022

Penetration tests include the use of vulnerability scanning tools and will generally be applied against external security devices and applications including, but not limited to, firewalls , web servers, web applications, gateways , and VPN servers. Internet of Things (IoT) devices connected to the network, such as security cameras, TVs, etc.

Penetration Testing 123

Penetration Testing Phishing Risk Social Engineering 123

Pen Test Partners

MAY 26, 2025

Our analysis proved theyd been socially engineered using deepfake voice calls and spoofed emails, exonerating the staff member and aiding in Interpols ongoing investigation. Ghost in the VPN Multiple remote desktop sessions were traced back to what we thought were legitimate users. When we were brought in, key VPN logs were missing.

Banking 64

Banking VPN Ransomware Scams 64

Security Boulevard

SEPTEMBER 5, 2024

Specifically, the first header received in the email indicates that the message originated from the IP address 69.167.8.118, which is associated with Powerhouse Management VPN. comAll those domains share a few characteristics:First, these domains are extensions of second-level domains (SLDs) associated with Dynamic DNS service providers.

Insurance 87

Insurance Phishing Banking Encryption 87

Chicago CyberSecurity Training

JUNE 26, 2023

If you need to connect to Wi-Fi outside of your home or office, it is highly recommended that you use a trusted network such as your mobile hotspot or a VPN. DNS spoofing and Man-in-the-Middle attacks can redirect or intercept network traffic, send victims to fake login pages, harvest login credentials or deliver malware.

Identity Theft 52

Identity Theft VPN Education Malware 52

SecureList

JUNE 2, 2022

Seeing that some variants of their Android malware impersonate a popular messaging app in Asia, it is also likely that malicious APKs are distributed in a variety of ways, including social engineering to convince users to install fake updates for their applications.

Malware 137

Malware Encryption Social Engineering Telecommunications 137

Zero Day

JUNE 13, 2025

Close Home Tech Security VPN Paid proxy servers vs free proxies: Is paying for a proxy service worth it? Also: Proxy vs. VPN: What is the difference, and which do I need? Also: The best VPN extensions for Chrome: Expert tested and reviewed Another factor you need to consider is reliability.

VPN 40

VPN Password Management Small Business Mobile 40

Fox IT

JANUARY 12, 2021

After obtaining a valid account, they use this account to access the victim’s VPN, Citrix or another remote service that allows access to the network of the victim. This specific document described how to access the internet facing company portal and the web-based VPN client into the company network. Command and control (TA0011).

Accountability 68

Accountability VPN Passwords DNS 68

eSecurity Planet

MARCH 14, 2023

Other hackers might use a spoofed domain name system (DNS) or IP addresses to redirect users from legitimate connections (to websites, servers, etc.) DNS security (IP address redirection, etc.), Bad devices can also include attacks that attempt to steal or redirect network traffic to connect to malicious resources.

Network Security 98

Network Security Firewall Penetration Testing Encryption 98

eSecurity Planet

APRIL 7, 2023

You may use a VPN or install utilities to capture and forward traffic to other subnets, or configure proxychains. There are multiple other attack angles to test, including: Network compromises Social engineering (e.g., Besides, attacking tools can send multiple probes or headers along with their requests (e.g.,

Penetration Testing 141

Penetration Testing Social Engineering Energy and Utilities Hacking 141

eSecurity Planet

JUNE 8, 2023

It can be time consuming to establish these protocols on an organization’s DNS servers, but doing so will provide two key benefits. Email security tools offer features that screen emails for malicious content using antivirus, anti-spam, DNS, attachment, and other analytics.

Firewall 80

Firewall DNS Authentication Malware 80

eSecurity Planet

MARCH 22, 2023

Virtual Private Network (VPN) : For remote access, remote desktop protocol (RDP) no longer can be considered safe. Instead, organizations should use a virtual private network (VPN) solution. Similarly, spoofed domain name system (DNS) and IP addresses can redirect users from legitimate connections to dangerous and malicious websites.

Firewall 109

Firewall Network Security Penetration Testing Encryption 109

CyberSecurity Insiders

APRIL 6, 2023

GoDaddy, Network Solutions) DNS service (E.g., Akamai, CloudFront) Certificate providers (E.g., Entrust, DigiCert) IaaS (Infrastructure as a Service) and SaaS (Software as a Service)) accounts (E.g.: PCI DSS v4.0 requires much more scrutiny of APIs – which are a growing aspect of application programming.

Accountability 57

Accountability DNS DDOS Architecture 57

SecureList

APRIL 27, 2021

The attackers used vulnerabilities in an SSL-VPN product to deploy a multi-layered loader we dubbed Ecipekac (aka DESLoader, SigLoader and HEAVYHAND). We attribute this activity to APT10 with high confidence. Most of the discovered payloads deployed by this loader are fileless and have not been seen before. Final thoughts.

Malware 145

Malware Government Spyware Social Engineering 145

NopSec

FEBRUARY 15, 2017

How Phishing Works: Social Engineering The term “phishing” is broadly defined as sending an email that falsely claims to be from a legitimate organization. All of them rely on social engineering, a term that describes methods of deception used to coerce a victim into giving up valuable information.

Phishing 40

Phishing Social Engineering Engineering Healthcare 40

eSecurity Planet

SEPTEMBER 26, 2023

Features Full SASE Features: centralized control, monitored user activity, inspected and decrypted traffic, controlled access, secured cloud-based assets, and monitored network status and operations control Rigorous ZTNA (aka ZTNA 2.0)

Artificial Intelligence 52

Artificial Intelligence Marketing DNS IoT 52

Kali Linux

NOVEMBER 27, 2022

4.2.2.2 # DNS servers to pass (not really required for our needs) opt lease 600 # 10 minute DHCP lease And we create our hook which copies in our DHCP config, /etc/initramfs-tools/hooks/udhcpd : #! VPN Tunnel Before we go over connecting to a VPN, it is important to note that the information will be stored in the initramfs file, unencrypted.

Firmware 52

Firmware Wireless Passwords VPN 52

eSecurity Planet

MARCH 16, 2023

DNS attacks : DNS cache poisoning, or hijacking, redirects a legitimate site’s DNS address and takes users to a malicious site when they attempt to navigate to that webpage. It’s not a job for inexperienced IT or network personnel, since even an expert engineer can easily make a configuration mistake.

Network Security 109

Network Security Firewall Internet Internet 109

SecureList

OCTOBER 26, 2021

In June, more than six months after DarkHalo had gone dark, we observed the DNS hijacking of multiple government zones of a CIS member state that allowed the attacker to redirect traffic from government mail servers to computers under their control – probably achieved by obtaining credentials to the control panel of the victims’ registrar.

Malware 145

Malware Government Surveillance Spyware 145

Cisco Security

JUNE 15, 2021

Some of those early NGFW implementations took shortcuts to improve performance by simply treating all UDP/53 traffic as DNS and TCP/23 as Telnet, but eventually everyone invested in good enough DPI to get beyond those obvious pitfalls. The performance impact is still there, but it is certainly not the biggest problem.

Firewall 140

Firewall Network Security Software Encryption 140