Cisco Security

JUNE 15, 2021

As a network and workload security strategy leader, I spend a lot of time thinking about the future of the good old network firewall. Spoiler alert: I’m not going to join the cool club of pronouncing the firewall dead. The two main problems for the firewall to overcome in all those new deployment scenarios are insertion and visibility.

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Firewall Software Network Security Encryption 130

Cisco Security

MARCH 16, 2021

Hiding internet activity strengthens privacy—but also makes it easier for bad actors to infiltrate the network. In fact, 63% of threats detected by Cisco Stealthwatch in 2019 were in encrypted traffic. In this blog I’ll describe two recent privacy advances—DNS over HTTPS (DoH) and QUIC—and what we’re doing to maintain visibility.

Encryption 85

Encryption DNS Threat Detection Internet 85

eSecurity Planet

APRIL 30, 2024

It’s important to prepare the network and firewalls in advance, then follow seven major steps to configure your DMZ’s protocols and rules. We recommend determining in advance every service you want to host, how many firewalls you plan to implement, and which traffic you want to allow and block.

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Firewall Internet Internet DNS 60

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. Firewalls may allow these packets through and cause server CPUs to become overwhelmed due to resources wasted analyzing and discarding these packets.

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DDOS DNS Firewall Internet 145

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 69

Security Affairs

AUGUST 10, 2020

An attacker could use $300 worth of off-the-shelf equipment to eavesdrop and intercept signals from satellite internet communications. The academic researcher James Pavur, speaking at Black Hat 2020 hacking conference , explained that satellite internet communications are susceptible to eavesdropping and signal interception.

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Internet Internet Advertising Encryption 87

eSecurity Planet

APRIL 26, 2024

Server: Provides powerful computing and storage in local, cloud, and data center networks to run services (Active Directory, DNS, email, databases, apps). Endpoint: Enables access for human users and computer services and commonly includes PCs, laptops, Internet of Things (IoT), and operational technology (OT).

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Architecture Network Security Firewall Risk 117

Malwarebytes

JULY 26, 2022

Part 1: Your data has been encrypted! Part 1: Your data has been encrypted! As you can see, our files have in fact been encrypted by the ransomware across multiple directories with the “ encrypt ” extension. Let’s start a ping to Google’s DNS server. Part 2: Pinpointing the ransomware.

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Encryption Ransomware Backups Firewall 68

Security Boulevard

FEBRUARY 1, 2023

In this guide we look at how to get familiar with using/tweaking Safing Portmaster , an open-source and host-based application firewall available for Linux and Windows machines. Compatibility note (port 53) Portmaster binds to Port 53 (DNS). Usually, this is because another service (likely DNS-related) is listening to this port.

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DNS Firewall Internet Internet 75

Identity IQ

MARCH 9, 2023

IdentityIQ We rely on the internet, from communicating with loved ones on social media to working and conducting business. If you can connect to the network without a password, open your web browser and see if you can browse the internet. Use a VPN A VPN encrypts your traffic with military-grade encryption.

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VPN Antivirus Identity Theft DNS 95

eSecurity Planet

MARCH 14, 2023

When the internet arrived, the network added a firewall to protect networks and users as they connected to the world wide web. The internet of things (IoT), operations technology (OT), and the industrial internet of things (IIoT) also now connect to networks. In a complex, modern network, this assumption falls apart.

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Network Security Firewall Penetration Testing Encryption 98

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. or direct connections with assets (storage containers, load balancing servers, web application firewalls, etc.) API calls on related applications (shopping carts, databases, etc.)

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Firewall Network Security Penetration Testing Encryption 107

CyberSecurity Insiders

MARCH 21, 2021

With a VPN like Surfshark to encrypt your online traffic and keep it protected against any security breach, your valuable data isn’t going to get compromised easily anytime soon. Firewalls . Install hardware firewalls for the maximum level of network security. . Protecting your data is very simple. Two-factor authentication .

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Small Business Cyber Attacks VPN Backups 145

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. Changing firewall rules.

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Ransomware DNS Encryption Backups 128

eSecurity Planet

SEPTEMBER 26, 2023

SD-WAN integration with the SASE controller for Meraki, Catalyst, and others Cisco Umbrella SIG unifies firewall, SWG, DNS-layer security, CASB, and threat intelligence functions into a single and well-tested cloud service.

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Firewall DNS Architecture Technology 98

Security Affairs

SEPTEMBER 25, 2022

builder Over 39K unauthenticated Redis services on the internet targeted in cryptocurrency campaign Hackers stole $160 Million from Crypto market maker Wintermute U.S. builder Over 39K unauthenticated Redis services on the internet targeted in cryptocurrency campaign Hackers stole $160 Million from Crypto market maker Wintermute U.S.

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Cryptocurrency Data breaches DNS DDOS 79

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 119

Security Affairs

OCTOBER 5, 2020

Unlike other IoT DDoS botnets, Ttint implements 12 remote access functions such as Socket5 proxy for router devices, tampering with router firewall and DNS settings, executing remote custom system commands. This botnet does not seem to be a very typical player.”

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IoT Firmware DNS Advertising 133

eSecurity Planet

MARCH 16, 2023

Definition, Threats & Protections Public Internet Threats If your enterprise network is connected to the public internet, every single threat on the internet can render your business vulnerable too. These threaten enterprise networks because malicious traffic from the internet can travel between networks.

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Network Security Firewall Internet Internet 107

SecureWorld News

MARCH 29, 2024

At its core, this tactic revolves around gaming the trust users put in reputable internet services, including search engines, and the familiarity they have with online advertising per se. This interference is a major catalyst for double extortion that involves both a breach and data encryption.

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Cybercrime Advertising Engineering Antivirus 82

eSecurity Planet

MAY 19, 2022

EdgeConnect Enterprise critically comes with firewall , segmentation , and application control capabilities. The first traditional cybersecurity vendor featured is Barracuda Networks, with consistent recognition for its email security , next-generation firewalls ( NGFW ), web application security , and backups. Features: Cisco SD-WAN.

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Firewall Architecture Encryption Network Security 117

Malwarebytes

AUGUST 8, 2023

Because of the HTTPS connection and the port the data exchange takes place on (QUIC on port 7844), it is unlikely to be picked up by protection software like firewalls unless specifically instructed to do so. Create a plan for patching vulnerabilities in internet-facing systems quickly; and disable or harden remote access like RDP and VPNs.

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Backups Ransomware DNS Software 84

eSecurity Planet

MAY 25, 2022

IDS and IPS solutions help fill in the gaps between endpoint protection , firewalls , and other parts of the security stack. Even the smallest organizations know that they should implement firewalls and endpoint protection solutions. This equipment usually cannot be protected by antivirus solutions or device-specific firewalls.

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Firewall Wireless Software Antivirus 107

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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Digital transformation Engineering Internet Internet 101

Cisco Security

NOVEMBER 29, 2021

It is a team effort, where collaboration combines a robust backbone (Gigamon), firewall protection (Palo Alto Networks), segmented wireless network (Commscope Ruckus) and network full packet capture & forensics, with identity (RSA NetWitness). This was only possible because the device was supervised. The other half is Clarity for iOS.

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DNS Mobile Malware Firewall 123

Security Affairs

JULY 27, 2020

In December 2018, security experts from Trend Micro discovered that some machine-to-machine (M2M) protocols can be abused to attack IoT and industrial Internet of Things (IIoT) systems. According to our estimate, CoAP can reach up to 32 times (32x) amplification factor, which is roughly between the amplification power of DNS and SSDP.”.

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DDOS IoT Internet Internet 106

Cisco Security

AUGUST 26, 2022

This new integration supports Umbrella proxy, cloud firewall, IP, and DNS logs. This integration expands on Elastic’s on-going expansion of Cisco integrations including ASA, Nexus, Meraki, Duo and Secure Firewall Threat Defense. New Cisco Firepower Next-Gen Firewall Integrations. Read more here. Read more here.

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Firewall Authentication Passwords Threat Detection 115

Cisco Security

MAY 17, 2021

This functionality is powered by the massive, real-time Talos threat intelligence feed (>40,000 active threat detection elements) to extend the depth of the Umbrella cloud-delivered firewall. is now available with Cisco Secure Firewall Management Center. Additionally, new Snort 3 IPS with Threat Defense 7.0

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Firewall Architecture Internet Internet 74

eSecurity Planet

MARCH 25, 2022

Also read : Best Internet Security Suites & Software. By exploiting weak server vulnerabilities, the Iran-based hackers were able to gain access, move laterally, encrypt IT systems, and demand ransom payment. Meanwhile, the suspect server was connected to the CDOT domain with an administrator account and the internet.

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VPN Software Authentication Encryption 117

The Last Watchdog

MARCH 26, 2020

So I may have a frontend web-tier server in one location, a backend database server in another location and application-tier server in yet another location, all hitting DNS servers. LW: So you’re looking at traffic that’s made it through the firewall and intrusion detection? LW: 5G only rolled out very recently.

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IoT Encryption DNS Firewall 164

Cisco Security

AUGUST 29, 2022

25+ Years of Black Hat (and some DNS stats), by Alejo Calaoagan. Cisco is a Premium Partner of the Black Hat NOC , and is the Official Wired & Wireless Network Equipment, Mobile Device Management, DNS (Domain Name Service) and Malware Analysis Provider of Black Hat. Meraki syslogs into NetWitness SIEM and Palo Alto Firewall.

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DNS Wireless Malware Firewall 74

eSecurity Planet

SEPTEMBER 26, 2023

Physical appliances provide functionality for routing wide area networks (WANs), stateful firewalls, SD-WANs, NGFW, antivirus, intrusion prevention services (IPS), and unified threat management (UTM) capabilities for local networks.

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Firewall Software Antivirus Internet 98

Vipre

JANUARY 25, 2021

An easy way to enhance your online security and privacy is by using a VPN while browsing the internet. A VPN or Virtual Private Network routes your internet traffic through an encrypted server by creating an encrypted tunnel between your device and a third-party server. Identity Theft Protection Tools. Ad Blockers.

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Identity Theft Backups VPN Antivirus 40

eSecurity Planet

FEBRUARY 16, 2021

Experts say the best defense is a multi-pronged network security strategy that includes a firewall, anti-malware software, network monitoring, intrusion detection and prevention (IDPS), and data protection. with no internet. You should also use a network firewall and an anti-malware solution. How to Defend Against a Backdoor.

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Malware Adware Spyware Antivirus 104

Troy Hunt

NOVEMBER 25, 2020

Back to the bit about risks impacting data collected by IoT devices and back again to CloudPets, Context Security's piece aligned with my own story about kids' CloudPets messages being left exposed to the internet. Or are they just the same old risks we've always had with data stored on the internet? So, what's the right approach?

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IoT Firmware Risk Manufacturing 357

eSecurity Planet

MARCH 10, 2021

The least common of SQL injection attacks, the out-of-band method relies on the database server to make DNS or HTTP requests delivering data to an attacker. . . . Raise Virtual or Physical Firewalls. We strongly recommend using a software or appliance-based web application firewall (WAF) to help filter out malicious data. .

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Penetration Testing Firewall Software Accountability 114

SecureList

SEPTEMBER 21, 2023

Brute-force attacks on services that use SSH, a more advanced protocol that encrypts traffic, can yield similar outcomes. User files were encrypted, with the device’s interface displaying a ransom note demanding payment of 0.03 DNS changer Malicious actors may use IoT devices to target users who connect to them.

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IoT DDOS Passwords Malware 92