Krebs on Security

AUGUST 23, 2024

At issue is a well-known security and privacy threat called “ namespace collision ,” a situation where domain names intended to be used exclusively on an internal company network end up overlapping with domains that can resolve normally on the open Internet. SSL/TLS certs). Image: Defcon.org.

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eSecurity Planet

FEBRUARY 4, 2022

Malware is one of the biggest threats businesses face, and with nearly a third of all malware coming through the internet and email, businesses and consumers alike need ways to protect themselves. This guide covers the major categories of internet security suites and includes a few of the top options for each. Back to top.

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Internet Internet Software Antivirus 144

Security Boulevard

SEPTEMBER 15, 2022

Many Canadians found themselves disconnected when cellular networks and the internet failed to respond—at home or at work. The post Why You Need a Secondary DNS appeared first on Security Boulevard. Last month, a large Canadian telecommunications provider suffered a catastrophic outage for more than 18 hours.

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DNS Telecommunications Internet Internet 93

Security Boulevard

JANUARY 31, 2024

It was DNS. It’s always DNS: Government ministry denies hackers hacked its network infrastructure. The post Russian Internet Outage: DNSSEC Oops or Ukraine Hack? appeared first on Security Boulevard.

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Internet Internet Hacking DNS 89

eSecurity Planet

MARCH 16, 2023

Network security threats weaken the defenses of an enterprise network, endangering proprietary data, critical applications, and the entire IT infrastructure. This guide to major network security threats covers detection methods as well as mitigation strategies for your organization to follow.

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eSecurity Planet

MARCH 14, 2023

Network security creates shielded, monitored, and secure communications between users and assets. Securing the expanding, sprawling, and sometimes conflicting collection of technologies that make up network security provides constant challenges for security professionals.

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Network Security Firewall Penetration Testing Encryption 98

Malwarebytes

JUNE 5, 2022

The open-source project lets people browse the Internet more anonymously by routing their traffic across different nodes before making a final connection between their device and a desired website. “There are so many security risks up the stack,” Muffett said. Tor has a storied reputation in the world of online privacy.

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eSecurity Planet

JANUARY 6, 2021

Forescout Research Labs last month released a 14-page white paper and a 47-page research report detailing 33 vulnerabilities affecting millions of Internet of Things (IoT), Operational Technology (OT), and IT devices. The four TCP/IP protocol layers are the link layer, internet layer , transport layer, and application layer.

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IoT DNS Internet Internet 141

Webroot

MARCH 9, 2021

DNS (Domain Name System) is especially vulnerable. Once the criminal redirects internet traffic to malicious websites or takes control of servers, the damage is inevitable. However, cybercriminals can also use legal DNS traffic surveillance to their advantage. Cybersecurity Tips for Individuals and Businesses.

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Hacking DNS Surveillance Cybercrime 132

Security Boulevard

MAY 6, 2021

As indoor spaces begin to open in the next few months, employees will want to venture out to new spaces to work, such as coffee shops and internet cafes – but working on open networks and personal devices creates unlocked gateways for cyberattacks to take place. DNS is frequently targeted by. DNS is frequently targeted by.

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Cybersecurity DNS Education Security Awareness 140

Security Boulevard

MARCH 20, 2023

The future of internet connectivity could diverge into two very different outcomes—aggressive monopolization by a few providers or a more diverse landscape that fosters innovation. The latter possibility is the better outcome, but it will require improved security to ensure that every entity can connect to each other safely.

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Internet Internet DNS Security Awareness 104

CyberSecurity Insiders

MAY 18, 2022

By increasing visibility into DNS traffic, CISOs can detect, block, and respond to incidents more quickly as well as use this data to institute new controls and increase overall resiliency. So why aren’t more organizations taking advantage of protective DNS? The issue likely comes down to awareness.

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DNS Cybersecurity CISO Social Engineering 140

Webroot

FEBRUARY 16, 2021

In recent months, you’ve likely heard about DNS over HTTPS , also known as DNS 2.0 and DoH, which is a method that uses the HTTPS protocol to encrypt DNS requests, shielding their contents from malicious actors and others who might misuse such information. Ultimately, this DNS privacy upgrade has been a long time coming.

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DNS Encryption Firewall Network Security 94

Webroot

MARCH 29, 2021

An endpoint DNS solution could have stopped the Trojanized Orion version by refusing to resolve the domain names of the command-and-control servers, again disrupting the infection to the point that no real damage could be done. This presents a new set of stubborn challenges for IT security admins that’s not likely to fade soon.

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Hacking DNS Firewall Malware 137

Malwarebytes

DECEMBER 1, 2023

For a “normal” connection to a website, a Domian Name System (DNS) finds the IP address for the requested domain name. As I explained in the blog DNS hijacks: what to look for , DNS is the phonebook of the internet to the effect that the input is a name and the output is a number.

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DNS Internet Internet Encryption 110

CyberSecurity Insiders

MARCH 21, 2021

When it comes to protecting your small business from cyber attacks, the first and foremost thing is to upgrade your network security and IT infrastructure to the latest standards. Modern technology comes with improved network security offering higher protection. . Ensure Network Security . Final Thoughts.

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eSecurity Planet

SEPTEMBER 3, 2022

These events can occur accidentally and even within a corporate network; however, intentional attacks on internet-facing resources are far more common. Also read: How to Secure DNS. DNS Flood: The attacking machines send spoofed DNS requests at a high packet rate to overwhelm the DNS server and shut down the domain.

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eSecurity Planet

MARCH 12, 2025

5 Security and privacy: 3.6/5 While it doesnt have quite as many extras as NordVPN, some highlights include its reasonable pricing and features like DNS leak protection and ad blocking. 5 Security and privacy: 4.3/5 VPNs are a great choice for protecting your internet browsing, but theyre just a starting point for security.

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VPN Mobile DNS Password Management 59

eSecurity Planet

DECEMBER 2, 2021

A next-generation firewall (NGFW) is an important component of network security and represents the third generation of firewall technology. To add to the stateful inspection of network traffic and access control , NGFWs can block modern, sophisticated threats like application-layer attacks and advanced malware.

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Firewall Network Security DNS Artificial Intelligence 131

McAfee

DECEMBER 10, 2021

This includes products from internet giants such as Apple iCloud, Steam, Samsung Cloud storage, but thousands of additional products and services will likely be vulnerable. Going forward we plan to test variations of the exploit delivered using additional services such as DNS. We may update this document accordingly with results.

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DNS Architecture Internet Internet 125

Security Affairs

OCTOBER 5, 2020

Security researchers provided technical details about an IoT botnet dubbed Ttint that has been exploiting two zero-days in Tenda routers. Security researchers at Netlab, the network security division Qihoo 360, have published a report that details an IoT botnet dubbed Ttint.

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IoT Firmware Advertising DNS 145

McAfee

DECEMBER 1, 2021

CVE-2021-20322: Of all the words of mice and men, the saddest are, “it was DNS again.” Randori initially reported over 70,000 internet-accessible PAN firewalls running vulnerable versions of PAN-OS according to Shodan , which it later amended to 10,000. Your Cybersecurity Comic Relief . Why am I here? . What can I do?

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DNS Firewall VPN Internet 90

eSecurity Planet

NOVEMBER 3, 2022

For effective DDoS defense, priority for patching and updates should be placed on devices between the most valuable resources and the internet such as firewalls, gateways , websites, and applications. Internet Control Message Protocol (ICMP) or ping requests. For more information, see How to Prevent DNS Attacks. Anti-DDoS Tools.

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DDOS Firewall DNS Architecture 126

Cisco Security

AUGUST 11, 2021

We looked at REvil, also known as Sodinokibi or Sodin, earlier in the year in a Threat Trends blog on DNS Security. In it we talked about how REvil/Sodinokibi compromised far more endpoints than Ryuk, but had far less DNS communication. Figure 1-DNS activity surrounding REvil/Sodinokibi.

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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. Protects websites, networks, DNS and individual IPs. Key Differentiators. Cloudflare.

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DDOS DNS Firewall Media 128

SC Magazine

MAY 4, 2021

Twenty-one vulnerabilities were discovered in Exim Internet Mailer, a popular mail transfer agent (MTA) that’s available for major Unix-like operating systems. In a blog post, the Qualys Research Team said that these vulnerabilities affect numerous organizations because an estimated 60% of internet servers run on Exim.

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Internet Internet DNS Network Security 79

eSecurity Planet

MAY 24, 2023

A successful DKIM check also verifies ownership of the email by matching the organization in the “from” fields of the email with the DNS associated with the organization. DKIM Fundamentals The Internet Engineering Task Force (IETF) publishes full information on the DKIM and its standards, which were last updated in 2011.

Technology 103

Technology DNS Encryption Authentication 103

Security Boulevard

JUNE 20, 2024

There’s no shortage of researchable financial cybercrime on the internet. Passive DNS: The Context of IP Addresses When threat actors target financial institutions using ransomware, they deploy it via multiple IP addresses. This process of translation is known as resolution: DNS resolves to IPs. Download the use cases 1.

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Cyber Attacks DNS Phishing Cyber threats 69

eSecurity Planet

MAY 23, 2023

When an organization sets up SPF, it helps Internet Service Providers (ISPs), email security vendors, and other email providers to validate an organization’s email communication and distinguish authorized communications from spoofed emails or phishing attacks attempting to impersonate that domain.

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DNS Phishing Authentication Internet 98

The Last Watchdog

MARCH 26, 2020

Related: Why cybersecurity should reflect societal values An emerging approach, called Network Traffic Analysis , is gaining traction as, in effect, a catch-all network security framework positioned at the highest layer of the networking stack. Just ask Equifax or Capital One.

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IoT Encryption DNS Firewall 164

eSecurity Planet

MARCH 22, 2023

Networks connect devices to each other so that users can access assets such as applications, data, or even other networks such as the internet. Network security protects and monitors the links and the communications within the network using a combination of hardware, software, and enforced policies.

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Firewall Network Security Penetration Testing Encryption 111

eSecurity Planet

APRIL 7, 2023

A DMZ network, or a demilitarized zone, is a subnetwork in an enterprise networking environment that contains public-facing resources — such as web servers for company websites — in order to isolate them from an enterprise’s private local area network (LAN).

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Architecture Firewall Network Security Technology 103

eSecurity Planet

DECEMBER 15, 2021

Secure web gateway (SWG) solutions help keep enterprise networks from falling victim to ransomware , malware , and other threats carried by internet traffic and malicious websites. Secure web gateways, then, provide fast, secure access to the Internet and SaaS, making digital business a safe and productive experience.

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Engineering Digital transformation Internet Internet 104

eSecurity Planet

SEPTEMBER 25, 2023

Founded in 2004, Cloudflare initially wanted to determine the source of email spam and became dedicated to building a better, more secure internet. The lowest tier of Cloudflare One provides support for 50 users maximum, 24 hours of activity logging, and up to three network locations for office-based DNS filtering.

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DNS DDOS IoT Firewall 98

eSecurity Planet

MAY 2, 2024

50,000 DDoS attacks on public domain name service (DNS) resolvers. 553% increase in DNS Flood attacks from 1H 2020 to 2H 2023. DDoS attacks on single networks or websites render them unavailable, but DDoS attacks on DNS resolvers bring down all networks and websites using that DNS resource.

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Cybersecurity DDOS Penetration Testing Passwords 123

eSecurity Planet

JULY 1, 2022

The attacks include ZuoRAT, a multi-stage remote access Trojan (RAT) that specifically exploits known vulnerabilities in SOHO routers to hijack DNS and HTTP traffic. C2 servers that interact with the Windows RATs were hosted on internet services from China-based organizations such as Alibaba’s Yuque and Tencent.

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Malware DNS Antivirus Internet 119

The Last Watchdog

OCTOBER 4, 2019

With a recent $40 million Series A equity stake from Bregal Sagemount , and fresh partnerships cemented with tech heavyweights Microsoft , Google Chronicle and Palo Alto Networks , among others, Critical Start is on a very promising trajectory. Watkins: We’ve had historical relationships with Cylance, Carbon Black, Open DNS and Splunk.

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Risk Marketing Digital transformation DNS 147