Despite the goal of keeping Web communications private, flaws in the design and implementation of Transport Layer Security have led to breaches, but the latest version – TLS 1.3 – is an overhaul that strengthens and streamlines the crypto protocol. What is TLS? TLS is a cryptographic protocol that provides end-to-end communications security over networks […]
A firewall is a network device that monitors packets going in and out of networks and blocks or allows them according to rules that have been set up to define what traffic is permissible and what traffic isn’t. There are several types of firewalls that have developed over the years, becoming progressively more complex over […]
You know you need to protect your company from unauthorized or unwanted access. You need a network security tool that examines the flow of data packets in and out of the enterprise, governed by rules that decide whether that flow is safe, malicious or questionable and in need of inspection. You need a firewall. Recognizing […]
It was about 20 years ago when I plugged my first Ethernet cable into a switch. It was for our new chief executive officer. Little did she know that she was about to share her traffic with most others on the first floor. At that time being a network engineer, I had five floors to […]
Cisco said today it had closed the $2.35 billion deal it made for network identity, authentication security company Duo. According to Cisco, Duo’s zero trust security model authorizes secure connections to all applications based on the trustworthiness of users and devices. Duo’s cloud-delivered technology lets IT professionals set and enforce risk-based, adaptive access policies and […]
As enterprises endeavor to expand domestic and global footprints, agile network infrastructure connectivity across geographies continues to prove an ongoing challenge. In particular, ensuring that data shared over these networks is protected from unauthorized access is a primary directive in today’s evolving cyber threat landscape. These often-contradictory demands call for IT decision makers to invest […]
Network administrators, IT managers and security professionals face a never-ending battle, constantly checking on what exactly is running on their networks and the vulnerabilities that lurk within. While there is a wealth of monitoring utilities available for network mapping and security auditing, nothing beats Nmap’s combination of versatility and usability, making it the widely acknowledged […]
Domain Name System (DNS) is our root of trust and is one of the most critical components of the internet. It is a mission-critical service because if it goes down, a business’s web presence goes down. DNS is a virtual database of names and numbers. It serves as the backbone for other services critical to […]
Network packet brokers (NPB) have played a key role in helping organizations manage their management and security tools. The tool space has exploded, and there is literally a tool for almost everything. Cybersecurity, probes, network performance management, forensics, application performance, and other tools have become highly specialized, causing companies to experience something called “tool sprawl” […]
Cisco today laid out $2.35 billion in cash and stock for network- identity, authentication and security company Duo. According to Cisco, Duo helps protect organizations against cyber breaches through the company’s cloud-based software that verifies the identity of users and the health of their devices before granting access to applications with the idea of preventing […]