"Buterin stressed the need for decentralization to eliminate the risk of a network having a single point of failure and the protections that a widely distributed network enjoys against coordinated attacks."
"The decentralized nature of the Bitcoin network eliminates a single point of failure and makes it impossible to be hacked or to be shut down."
"DNS is one of those things that is a very simple concept but why we get paid the big bucks is taking that simple concept and turning it into a complex infrastructure that solves your security issues."
"The larger the network becomes, the harder it is to hack, so Bitcoin network is arguably the most secure network ever built by man."
"Remote access servers, like VPNs, allow connection to internal networks from outside the organization."
"The network is literally the most secure it has ever been."
"Port forwarding your NVR and exposing it directly to the internet is a really bad plan."
"I cannot think of the network as the security perimeter anymore."
"Kismet can detect some of these common attacks like the deauthentication attack."
"Thankfully, Patch 9.1 does introduce an important reward for all Torgast runs."
"Apollo lets Palantir push the right updates to the right clients at the right times, even if those client machines are sitting on classified networks or networks that don't touch the internet at all."
"An open port, especially an unnecessarily open port, might be a security gap."
"Unquestionably, software patches are Paramount to ensure networks remain operational, safe, secure, and reliable."
"A Chinese man has accidentally discovered a spy service on the back end of his Android TV. It can collect data from all devices using the same network every 10 minutes."
"Active Directory are the security services for a Microsoft Windows network."
"pfBlockerNG: Fine-tuning your firewall rules."
"The odds of 25, 26 companies risking their full market cap and corporate reputation to compromise the network is very small."
"He presented this device that he created, like an AI network hacking device, and it's just chewing through Wi-Fi signal bands, just literally eating up handshakes and other stuff."
"Reverse proxies aren’t magic and they don’t fix everything."
"Cybersecurity is a growing problem we need to have better network security, cloud security, and point security."
"Once you have network security, you will never be facing any virus problem or any hacking problem again in the future."
"Home Shield version 3 covers all security scenarios with its network security, parental controls, QoS, and comprehensive reports."
"Legislation should be considered that requires real-time network monitoring of all collection equipment even on the air gap networks."
"If a hacker is connected to the same encrypted wi-fi network as you, they can easily access your information."
"It turns out that uber developed a way to remotely disconnect their local offices from their network in the event that the offices were raided by local authorities."
"It's time to implement a network security platform built for zero trust, powered by AI."
"ExpressVPN's whole thing is putting a stop to that by rerouting 100% of your network traffic through their secure encrypted servers, protecting you from Big Man Charlie the sausage boss."
"Unify has an ids in an ips system so the ids is an intrusion detection system it will send out alerts if there is something malicious coming into your network."
"Your network can be hacked... it's not safe. Probably yes."
"I get paid to try to break into companies' networks... the professional name for it is penetration testing."
"With Pi-hole, a DNS-based filtering tool, you can block advertisements, tracking, and even known malicious sites and malware on your entire network."
"Decentralization and security: it's just not optional."
"Blockchain enables the creation of decentralized networks that make strong commitments."
"I use amass extensively in my recon... It'll scan the IP range and expand out all the ranges."
"A router is a device that is going to not only protect you with a firewall built inside which is going to protect you from being completely exposed on the internet."
"All of these are examples of devices that should be isolated into their own IOT network."
"Computing technology is going to improve, and if quantum computing comes along, it'll be incorporated into the defense of the network."
"It's a decentralized peer-to-peer permissionless, unhackable permanent record."
"Firewalls: block ports, but blocking too much can cause unexpected issues."
"53% of the security of Bitcoin was wiped out. Bitcoin is the most secure computer network in the history of the world."
"Bitcoin technology: revolutionary, trustless transactions, tamper-proof, peer-to-peer, maintained by software and encryption, most powerful computer network in human history."
"Eliminate single points of failure for decentralized security."
"The more that these networks connect, the more at risk it makes us."
"5G networks must be secure. They must be strong."
"Bitcoin is the most powerful secure computer network."
"Chainlink is using economic incentive and disincentive to force good behavior on the network and disincentivize bad behavior."
"Bitcoin is definitely the best way to go... it's the most decentralized and most secure network on the planet."
"Scapy can all be automated... you have the entire arsenal of the python language and libraries modules... so that's super duper cool."
"Let's get into the good stuff... let's get into the really cool attacks that could potentially take down the internet."
"A DNS amplification attack abuses the regular functionality of DNS to overwhelm a target."
"Injecting fake routing information into BGP packets could reroute traffic to a bad place."
"Security is one of the main reasons for implementing VLANs."
"You need people defending this network at all costs."
"Setting up a network like this isn't cheap and it's not that quick but it's orders of magnitude more secure than letting all of your IOT devices from various manufacturers commingle with your trusted devices"
"Ether being money... makes the network more secure."
"If our 5g networks are insecure every single thing that we value in life is gonna be insecure and that's why we're taking such aggressive action at the FCC."
"Firewall rules are basically the bread and butter of every firewall out there."
"Policy and objects, that is the bread and butter of your FortiGate firewall."
"Always make sure that your administrator is connecting to your FortiGate through a trusted host."
"Flow logs can be used for network monitoring, forensics, real-time security analysis, and expense optimization."
"Talos, formerly the VRT, is a group of leading-edge network security experts working around the clock to proactively discover, assess, and respond to the latest trends in hacking activities, intrusion attempts, malware, and vulnerabilities."
"Remember our initial rules for the LAN outbound port are allowing HTTP, HTTPS, SSH, DNS on both UDP and TCP ports, Network Time Protocol, and several ICMP message types."
"Snort does signature-based and protocol-based detection."
"Security groups... define permissible network traffic consisting of rules similar to what you'd see in a firewall rule set."
"Once you understand the way the network is supposed to work, then you can begin to understand how people take advantage and compromise it."
"So if I want to control, we have network security groups."
"Rogue access points are something you have to be cognizant of and be scanning for because it can compromise your entire network."
"Locks down your iot so it can't talk to anything unless you want it to."
"One of the reasons why I'm kind of telling you about Firewalla is because, well, if you go buy some of the commercial off the shelf stuff...you don't know what's happening on your network."
"A firewall typically establishes a barrier between a trusted internal network and an untrusted external network such as the internet."
"Packet captures are incredibly useful during incident investigation."
"OS hardening is essential to keep the entire network secure. It's important to secure the OS in each system because one insecure OS can lead to the whole network being compromised."
"Network hardening focuses on network-related security, like Port filtering, network access privileges, and encryption over networks."
"Port filtering is a firewall function that blocks or allows certain port numbers to limit unwanted communication."
"Cloud network hardening requires proper maintenance through various security hardening procedures. Even though cloud servers are hosted by a cloud service provider, organizations still need to take security measures to ensure their cloud network is safe."
"Security hardening involves minimizing the attack surface or potential vulnerabilities and keeping a network as secure as possible."
"Securing networks is an essential part of a security analyst's duties. Knowledge of network operations and security practices will ensure your success as a security analyst."
"It's important to secure networks because network-based attacks are growing in both frequency and complexity."
"Private Link lets me actually create a private endpoint into my virtual network."
"There is so much, as you can tell already today, there's so much in these videos that talks about control types and encryption methods and being able to understand the different security devices that you need to put into your network."
"Ping, as simple as it may seem, allows you to actually include data in the ping request, and if you're not careful as a security expert and/or security architect, that data can be exfiltrated without your knowledge."
"Snort's ability to analyze and respond to network traffic makes it a powerful tool for network security."
"So again, if you're, if you know what you're doing with network security, hopefully you find this helpful."
"Challenge Handshake Authentication Protocol is more secure than password Authentication Protocol and is used to pass client credentials securely over a public network."
"The biggest challenge for firewall administrators is figuring out where traffic is coming from, where traffic is going to, and then what that traffic happens to be."
"Most organizations’ networks tend to have things slapped on over time and end up looking like slums: functional but quite vulnerable to compromise."
"So here's the task I'll create for you: create a script that will go out to a Palo Alto Networks firewall, grab the configuration, and pull it down and save it, effectively making your own backup process."
"A firewall is software or hardware that works to block unwanted network traffic."
"The hacker set out to figure how exactly do some engineers get remote access into the network?"
"So if I want to get to my system from outside my network, which I do a lot of times, I want to make sure that I've got my firewall set up correctly."
"What a great way to prevent an attacker from doing something nasty inside your network is to make them second-guess everything."
"We want to securely set the time and date on network devices. What secure protocol should be used for that task?"
"Create an encrypted tunnel for remote access."
"Close all unnecessary and unused ports and services on systems and devices."
"... you get that peace of mind that your Enterprise Network is as secured as possible preventing internal or external threats."
"Threat hunting: it's all about finding weaknesses in our networks or on our hosts before they can harm us."
"Enterprise grad security wherein it natively supports 802.1x protocol for Port security you can do storm controlling."
"Our SIM can collect a massive amount of data from a variety of sources, like our network devices, our identity management system, our mobile device management system, our CASB, and our endpoints."
"Default group policy is bad. Disable LMNR, disable WPAD, disable IPv6. Stop sending SPNs for users. Don't use unconstrained delegation. Bloodhound is great. Patch."
"So with Cloudflare and Google, they're not going to reroute you."
"Penetration testing also has to be done every year on your internal as well as external IP addresses."
"Best practice in network security is a concept called Zero trust, or similarly least privilege, which basically means that you should start by blocking all traffic to every device on your network, and then only grant specific access to devices that need it, when they need it."
"Protected management frames are great, and they will help to provide much more secure connections in the future."
"Whether it’s increased setup time, decreased network speed, or even loss of some functionality, you’ll need to decide where you want your network to fall on the continuum of convenience vs security."
"The last component is the traffic mirroring session itself. Session is an entity that binds the traffic mirroring source, which is where you received the production traffic, the filter and the target, which is the security or monitoring appliance."
"Network security: It is very important to understand how perimeter security and first line of defense really works."
"Your own internal data, your internal information about what adversaries have done on your own networks, that can be the most valuable data source."
"The default security group rules can cause basic problems."
"...the single packet attack makes remote race conditions local."
"Finding evidence that an unauthorized person logged into a server, ran Mimikatz, collected lots of usernames and passwords, and then pulled them out of the network is really bad."
"If you're not running spanning tree protocol on your network, then you are susceptible to a switching loop."
"In a zero trust environment, we don't trust the user or the device or any of the communicating node."
"It's important to understand exactly what the commands are and how this works because after all, this is a hole into your network."
"Tail Scale is a secure network that just works."
"AAA looks beyond the device itself; it looks at the entire network."
"This is going to be my pfSense machine that we're going to be using for router, firewall, VPN, all that stuff."
"We are validating every connection to make sure they are who they say they are."
"A lot of home users like to run Pi-hole in their network to block ads, ad tracking, telemetry data, or malicious domain names."
"Denial of Service... it stands for denying something."
"In case of DDoS, which is Distributed Denial of Services, we create zombies."
"This is a very pure identification that there is going something happening in your network."
"Network security experts use firewalls, physical protective hardware, and security awareness to prevent breaches and retain lost data."
"Network security engineers are critical in deploying, setting, and managing network and security hardware and software."
"Kerberos is best if you have a domain and everything's configured."
"It's not about getting around the firewall in terms of disabling it or finding another way out; it's about what the firewall allows."
"NMAP or Network Mapper is one of the most popular networks and security auditing tools."
"Deny by default, only allow those things that you know about that need to communicate between your assets."
"We work to secure our network and infrastructure and provide customers the tools necessary to do so in their own projects."
"Securing your network is essential."
"The first step you need to make is to make sure your home network is encrypted."
"Major elements of cyber security are information security, network security, operational security, application security, end-user education, and business continuity planning."
"Everyone in the network has a copy of the blockchain data which is used for ensuring the data remains untampered."
"The product can give very granular visibility and control into which users and devices are accessing your network at any given time."
"A VPN, short for Virtual Private Network, is a cybersecurity tool for privacy and security."
"It's a network-based threat hunting tool."
"Network activity warrant allows the police to collect intelligence from devices or networks."
"The employees will train the software through machine learning and AI... then the bots crawl across the network, the more they train themselves about what to look for."
"That gives us security groups, that gives us things like IAM roles."
"Bitcoin Core, the reference implementation of the Bitcoin protocol, is indispensable to the operation and security of the Bitcoin Network."
"It's difficult for a device to completely hide itself on the network, and these scanners are designed to find every device that they can."
"This security feature is often called DHCP snooping."
"Overlay networking is encrypted by default."
"Once you set this up for the first time, it allows you to have a much safer and controlled network environment."
"What is the standard port used for the HTTPS protocol? 443."
"We're going to have to both strengthen overall networks, but we're also going to have to train millions of individual actors -- small businesses, big vendors, individuals -- in terms of basic cyber hygiene."
"This is a very powerful tool as far as securing your network based on user IDs and user groups within active directory."
"Prisma access is the industry's most comprehensive and capable secure access service edge."
"I believe single sign-on is a key feature for network security."
"It's critical to have network access control security solutions in place."
"As attackers get into your networks, they're looking for easy ways to gain more and more access."
"A firewall just prevents unauthorized access to a network."
"We started off with this clearly defined network... It's very simple, it's very easy to understand and very easy to secure."
"We can stop that kind of nonsense by implementing dynamic ARP inspection."
"Communication is essentially what's the communication path between the attacker and the system itself."
"Zero trust is the idea that there is no trusted network anymore and each access request should be judged on its own immediate merits."
"Network virtualization offers solutions to the challenges of sharing network resources but keeping users totally separate from one another."
"HTTPS encrypts the data packets transmitted in the network."
"A public network can have as many participants and nodes as it wants, making it a secure network."
"One of the major advantages of hybrid blockchain is that it operates within a closed environment, preventing outside hackers from launching a 51% attack on the network."
"Network and tenant isolation guarantees... air gaps are often cited as an essential security mechanism."
"We have our security assets, so firewalls, IDS, etcetera, these are going to generate logs and events."
"With Wasabi, users can potentially achieve a better level of indistinguishability for their coins and for the entire network."
"Load balancing tends to be about connection, security, and availability."
"The main purpose of a firewall is to separate trusted networks from the external network, or the internet."
"Firewall testing is one of the most important types of network tests that can be conducted."
"Making sure firewall policies and rules are configured properly will greatly reduce the attack success and prevent most unauthorized connection attempts."
"The overall goal of this project was really to detect and classify network attacks from real internet traffic."
"We do not treat the network as our primary perimeter. It's not our security barrier."
"The most foolproof way of connecting the two sync interfaces physically between the primary and secondary firewall would be a crossover cable."
"It does need to be secured because a lot of the traffic that is riding on this network is very sensitive, and you don't want it to end up in the wrong hands."
"You have to verify if the security resources that you put in place are actually making your network safer."
"StealthWatch is all about this: how do we take telemetry from the network, give it meaning, and then run a form of analytics on it to give you an outcome."
"We've provided improved privacy options throughout the whole network."
"Google has started out using it for profiling and they're now moving to traffic optimization and network security as well."
"Port security is used to limit access to switch ports."
"The sticky keyword allows us to dynamically learn and then statically set the MAC addresses."
"Port security allows us to control what devices are plugged into our ports and how many devices can plug into a port."
"You can set up multiple organizations to use the VPN and you can keep those on separate virtual networks, which is really awesome."
"This secret here you'll use in UniFi when you set up the RADIUS server."
"Port security is a method of controlling who, what, and how many devices connect to our switches."
"Azure Firewall provides another layer of perimeter type control."
"A proxy is a security device that sits in the middle of the communication between the users and the external network they're accessing."
"Whenever we're using resources on our network, we're constantly needing to identify ourselves."
"This triple-a framework commonly runs on a triple-a server that's somewhere in our network."
"A UTM can be used for URL filtering or content inspection."
"Modern firewalls are able to look at the applications that are flowing across the network."
"It also helps us keep our network secure so that networks like the guest network won't compromise our gateways or APs."
"The protected port feature will indeed prevent FastEthernet 0/1 and 0/2 in our environment from directly exchanging information with each other."
"Using OpenBSD for all the core services has really paid out for us; stability is awesome, we didn't have compromises, the security is critical to us."
"Network evidence is absolutely critical to completing our understanding and establishing a comprehensive picture of what happened during an incident."
"...we've moved ethereum to become a network that is economically secured by Ether, which is also incredible."
"If the program you have listening to your privileged port is 20 lines of heavily audited code, it's really hard to compromise."
"Zero trust security means that every computer, every application, every person on the network has to re-authenticate anytime they're talking to someone else."