View allAll Photos Tagged ComputerSecurity
The word 'security' highlighted in the dictionary. A nice, illustrative image for use on websites, in blog posts, etc.
When using this image please provide photo credit (link) to: www.bluecoat.com/
Type a description and the computer tries to paint the image you described. It's not always pretty. This is the result from my text prompt: "Laptop screen shows eye watching user."
Try it out here. It's fast and easy. It's not perfect so choose your text prompt carefully.
See a complete review of my Network Closet here: youtu.be/1MzRNGlDcLs
There are 4 main subnets in my home network:
Main - Green cables connect all main subnet components. This includes a 24 port 1GbE switch and a 12 port 10GbE switch connected via a 10GbE SFP+ cable. This is the main network of my home connecting all computers, printers, wifi APs, Media Players, and a Buffalo Terastation NAS which acts as the media server.
Guest - Yellow cables connect guest connections to half of a 24 port 1GbE switch. Yellow cable also connects the guest VLAN to the main network access points. This subnet is isolated from the rest of the network.
Surveillance - Blue cables connect all video surveillance equipment to a 16 port 1GbE POE switch. This includes wiring for 10 security cameras and a Synology RS814+ NAS containing 4 WD 3TB SE WD3000F9YZ HDD. Currently have 8 HIK Vision security cameras running, 5 DS-2CD2032-I 4mm bullet cameras and 3 DS-2CD2132F-I 2.8mm dome cameras.
MODnet - Orange cables connect 4 set top boxes to the WAN through a 5 port 1GbE Switch for China Telecom Movie on Demand Internet TV service.
Interweb - Red Cables are outside of my network, which includes connection to the modem and the community network.
Concerning the photo, its another version using the 35mm Cron. Took a different approach with lighting this time using two flood lights. The shot is an overlay of several HDR tonemap images over an exposure fusion from a 5 shot 1EV step bracket. Post processing is very different from previous approaches, though not sure if I like it better or not...
See a complete review of my Network Closet here: youtu.be/1MzRNGlDcLs
Upgrades since last photo includes a new NAS with 10G SFP+ interface. The old Buffalo NAS is now used as an rsync backup destination. I also installed 2 19u rails to push out the bottom half of the rack by 6cm. This allows enough depth for NAS installation in bottom half and plenty of room for wire management in the top half. I think its done for now...
There are 4 main subnets in my home network:
Main - Green cables connect all main subnet components. This includes a 24 port 1GbE switch and a 12 port 10GbE switch connected via a 10GbE SFP+ cable. This is the main network of my home connecting all computers, printers, wifi APs, Media Players, and a Synology RS3614xs NAS with 9 WD 3TB SE WD3000F9YZ HDD which acts as the media server and file server for all computers in my home. This NAS and computers in my study are on the 10GbE network.
Guest - Yellow cables connect guest connections to half of a 24 port 1GbE switch. Yellow cable also connects the guest VLAN to the main network access points. This subnet is isolated from the rest of the network.
Surveillance - Blue cables connect all video surveillance equipment to a 16 port 1GbE POE switch. This includes wiring for 10 security cameras and a Synology RS814+ NAS containing 4 WD 4TB SE WD4000F9YZ HDD. Currently have 8 HIK Vision security cameras running, 5 DS-2CD2032-I 4mm bullet cameras and 3 DS-2CD2132F-I 2.8mm dome cameras.
MODnet - Orange cables connect 4 set top boxes to the WAN through a 5 port 1GbE Switch for China Telecom Movie on Demand Internet TV service.
Interweb - Red Cables are outside of my network, which includes connection to the modem and the community network.
Concerning the photo, its another version using the 35mm Cron. Lit with two flood lights through umbrellas from front top and bottom, reflector at right side, and backside lighting with a 100w quartz halogen through umbrella. The shot is an overlay of several HDR tonemap images over an exposure fusion from a 4 shot 1EV step bracket.
"We stand today at the brink of a revolution in cryptography" -- the first sentence from the most famous cryptographic research paper ever written. In 1976 Whit Diffie and Martin Hellman discovered Public Key Cryptography which enabled the transformation of the ancient art of cryptography into a science. The consequences of their research have had huge implications to the everyday lives of billions of people around the globe. For instance, they provided the main concepts for the realisation of security in e-commerce, online banking, cable/satellite television, online stock trading, cloud computing, mobile phone communication, and many, many, many more applications.
In retrospect, Diffie and Hellman were standing on more than just the brink of a revolution in cryptography. It was the brink of a revolution in information technology, and public key cryptography was providing the bridge that allowed us to make it a reality. Welcome to the information age.
Miniature maids or cleaning women on an open computer hard drive. They are cleaning viruses, spyware and trojans. Computer security concept.
On Monday 6 October, computer security expert Bruce Schneier spoke at The Second Annual Front Line Defenders Lecture which was organised in partnership with University College Dublin and Trinity College Dublin.
The public lecture, entitled 'Is it Possible to be Safe Online? Human Rights Defenders and the Internet', explored the issues faced by human rights defenders and activists on the ground as the use of computers and the Internet in their work is becoming increasingly commonplace and the threats posed by governments manipulating, monitoring and subverting electronic information, increased surveillance and censorship and the lack of security for digitally communicated and stored information is on the rise.
High school students participating in the 2017 State of Delaware Cyber Camp listen to Iowa State Ph.D. candidate Ben Holland's talk on "Program Analysis for Cybersecurity." The camp is part of the U.S. Cyber Challenge, a "week-long day camp comprised of cyber security workshops, labs, with a competition held on the last day." Photo courtesy of University of Delaware.
Light-hearted, abstract representation of computer hacking. Two out of three computers within the same building have been hacked by a remote computer.
Stitch was busy preparing for his upcoming Certified Ethical Hacker exam and invited others to practice exams together.
Steven Hofmeyr, a computer scientist specializing in immunology with ties both to the MIT AI Lab and to the Santa Fe Institute, founded Company51 in 2000 to apply some of his insights about biological immune systems to computer security. The company, now called Sana (as in “health”) security, has just released a standalone desktop product called SafeConnect. (I own a small share. Hofmeyr is now a consultant to the company and is working on a new start-up, exploring new ways of building distributed storage systems.)
Time is a key factor in assessing behavior as suspicious. Someone sending out files at 4 pm is probably normal; the same person sending the same files at 4 *am* - assuming he’s not traveling in some other time zone - is suspicious. Any security system probably assesses such factors and then - if it’s not in the system - some human will check to see where Juan was that particular morning. Was he traveling in France on business? Or was he - supposed to be - on vacation? It’s the combination of factors that counts. But there are many more subtle uses of time, says Hofmeyr.
Any suspicious event becomes more suspicious if it occurs along with another suspicious or non-routine event. For example, a file upload that happens around the time of a door-lock malfunction. Or the attempted use of an expired password shortly after an employee retires.
But, notes Hofmeyr, “After the first detection of something odd, you can’t act immediately or you’ll end up on constant alert. You have to wait to see if it’s a real threat… but you can’t wait too long…”
He resorts to immune-system analogies. “The immune system exploits time. You bet that you have the time to build up an effective response… Besides, if you react immediately to something you think is bad, that reaction itself could hurt you, so you have to wait for some damage before reacting. The problem is that what appears unusual may be benign – so the immune system waits until damage occurs because then it can be sure that the unusual behavior is not benign – but then of course the immune system has to play catch-up – it’s a case of giving the pathogen “enough rope to hang itself.” Knowing precisely what that timing should be is what distinguishes good security from ineffective responses.
Now that Hofmeyr is leaving, one of Sana’s key employees is Matt Williamson, who came up with the concept of “virus throttling” at HP Labs. Viruses are most harmful (obviously) when they spread rapidly… and that's something that “normal” programs don’t do. Even P2P music files, spread by individuals, don’t spread that fast; even p2p software limits the number of concurrent downloads from one computer to a just a couple.
An individual using a computer, even a busy browser, is unlikely to connect to more than five or so new addresses in a minute. (Any security system knows how to make an exception for a mass mailer, though an ISP’s security system monitoring a customer base of consumer machines might rightly not make such an exception.) “For a virus, that’s slow. An infected machine might try to connect to thousands of other systems in a minute.” So you can just default to prevent such behavior by limiting the number of new connections a computer makes per minutes, and alert a monitor when it is attempted.
“That slows the propagation of viruses, but doesn’t bother people. We exploit the different meaning that time has for people and machines.”
Yet the similarities are useful too. There’s a truism in immunology that pathogens don’t want to be too harmful because they want their hosts to survive. As software becomes more and more malicious, it also becomes benign in some way because it wants host to stay alive. So a virus inside a host population - if the population doesn’t fight it - tends to become benign. But if other pathogens are around, then it may become virulent –if only because it has little to lose. “Whoever kills the host first wins, because he gets the most out of it,” says Hofmeyr. And then there’s the phenomenon of pathogens attacking one another, while the host is simply an innocent bystander/environment. All this happens over time; the security expert’s task is to figure out these cycles and exploit the vulnerabilities.
In the spyware world for example, we have the phenomenon of spyware packages trying to de-instlall one another in order to gain exclusive access to the host.
Or, notes Hofmeyr, “there were 11 variants of the Zotob worm competing ferociously, all trying to delete each other. They were so busy harming one another they did may have done less harm to the host – even though they may also have spread faster in an attempt to get to the vulnerable hosts first. Imagine a worm that spreads and makes you less vulnerable to other guy [worm], but then it does its own damage three months later.”
On Monday 6 October, computer security expert Bruce Schneier spoke at The Second Annual Front Line Defenders Lecture which was organised in partnership with University College Dublin and Trinity College Dublin.
The public lecture, entitled 'Is it Possible to be Safe Online? Human Rights Defenders and the Internet', explored the issues faced by human rights defenders and activists on the ground as the use of computers and the Internet in their work is becoming increasingly commonplace and the threats posed by governments manipulating, monitoring and subverting electronic information, increased surveillance and censorship and the lack of security for digitally communicated and stored information is on the rise.
On Monday 6 October, computer security expert Bruce Schneier spoke at The Second Annual Front Line Defenders Lecture which was organised in partnership with University College Dublin and Trinity College Dublin.
The public lecture, entitled 'Is it Possible to be Safe Online? Human Rights Defenders and the Internet', explored the issues faced by human rights defenders and activists on the ground as the use of computers and the Internet in their work is becoming increasingly commonplace and the threats posed by governments manipulating, monitoring and subverting electronic information, increased surveillance and censorship and the lack of security for digitally communicated and stored information is on the rise.
Nsauditor Network Security Auditor - Advanced All-In-One Network Tools Suite includes more than 45 network tools and utilities for network auditing, scanning, network connections monitoring and more.
Product Page: www.nsauditor.com/network_security/network_security_audit...
Nsauditor is Network Security and Vulnerability Scanner that gives you the power to scan, detect and correct any potential security risk on your network. Nsauditor allows monitoring network computers for possible vulnerabilities, checking enterprise network for all potential methods that a hacker might use to attack it and create a report of potential problems that were found. Nsauditor helps network administrators to identify security holes and flaws in their networked systems. The program also includes firewall system, real-time network monitoring, packet filtering and analyzing. Nsauditor significantly reduces the total cost of network management in enterprise environments by enabling IT personnel and systems administrators gather a wide range of information from all the computers in the network without installing server-side applications on these computers and create a report of potential problems that were found.
A network monitor tool provides some insight into services running locally, with options to dig down into each connection and analyze the remote system, terminate connections, block unwanted network connections with incrusted firewall system and view data on the associated process.
On Monday 6 October, computer security expert Bruce Schneier spoke at The Second Annual Front Line Defenders Lecture which was organised in partnership with University College Dublin and Trinity College Dublin.
The public lecture, entitled 'Is it Possible to be Safe Online? Human Rights Defenders and the Internet', explored the issues faced by human rights defenders and activists on the ground as the use of computers and the Internet in their work is becoming increasingly commonplace and the threats posed by governments manipulating, monitoring and subverting electronic information, increased surveillance and censorship and the lack of security for digitally communicated and stored information is on the rise.
ZoomCharts is offering data visualization tools to support presenters at the National Conference on Emerging Trends in Information Technology, the theme of which will be Cyber Security: A Panoramic View.
Organized by the Institute of Innovation in Technology & Management, and in collaboration with the Institute of Information Technology & Management, the event takes place on March 21st, 2015, at, D-27, 28, Institutional Area, Janakpuri, New Dehli-110058.
Check out what you can do with ZoomCharts charts and graphs at zoomcharts.com
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Original papers being accepted at the cyber security conference include those by researchers, academicians, industrialists, and postgraduate students.
There is a wide range of topics being covered at the event, such as Cloud Security, Mobile and Web Security, Wireless Network Security, Social Networking Security and Privacy, Network Security and Cryptography, End Point Security, Biometrics, Anti-Forensic Techniques, Honeynet Technologies, SCADA Security, Cyber Threats and Trends, Firewall Management, Virtualized Machines, SOA Security Issues, and more.
Check out ZoomCharts products:
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Explore linked data sets. Highlight relevant data with dynamic filters and visual styles. Incremental data loading. Exploration with focus nodes.
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Time navigation and exploration tool
Browse activity logs, select time ranges. Multiple data series and value axes. Switch between time units.
Pie Chart
Amazingly intuitive hierarchical data exploration
Get quick overview of your data and drill down when necessary. All in a single easy to use chart.
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Scrollable bar chart with drill-down
Compare values side by side and provide easy access to the long tail.
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Cyber warfare operators serving with the 175th Cyberspace Operations Group of the Maryland Air National Guard at Warfield Air National Guard Base, Middle River, Md., monitor cyber attacks on the operations floor of the 275th Cyber Operations Squadron, known as the Hunter's Den, Dec. 2, 2017. (U.S. Air Force photo by J.M. Eddins Jr.)
The headquarters of Docker, Inc., a startup company that develops container computing technology, at 144 Townsend Street, San Francisco, CA 94107 in the San Francisco Bay Area.
Cyber warfare operators serving with the 175th Cyberspace Operations Group of the Maryland Air National Guard at Warfield Air National Guard Base, Middle River, Md., monitor cyber attacks on the operations floor of the 275th Cyber Operations Squadron, known as the Hunter's Den, Dec. 2, 2017. (U.S. Air Force photo by J.M. Eddins Jr.)
Capt. Taiwan Veney, cyber warfare operations officer, watches members of the 175th Cyberspace Operations Group, from left, Capt. Adelia McClain, Staff Sgt. Wendell Myler, Senior Airman Paul Pearson and Staff Sgt. Thacious Freeman, analyze log files and provide a cyber threat update utilizing a Kibana visualization on the large data wall in the Hunter's Den at Warfield Air National Guard Base, Middle River, Md., June 3, 2017. (U.S. Air Force photo by J.M. Eddins Jr.)
I had to have my laptop running something while I was driving today for an experiment, and I didn't want to take the time to figure out how to have the laptop run while closed (I was running out of daylight). The alternative was to strap the bad boy into the passenger seat with the display open so that the thing could keep running.
I know it isn't pretty, but the point is that I got my data and my laptop never budged from its spot (and I took a few of those turns a little, ah, spiritedly).
Cyber warfare operators assigned to the 275th Cyber Operations Squadron of the 175th Cyberspace Operations Group of the Maryland Air National Guard configure a threat intelligence feed for daily watch in the Hunter's Den at Warfield Air National Guard Base, Middle River, Md., Dec. 2, 2017. (U.S. Air Force photo by J.M. Eddins Jr.)
Staff Sgt. Wendell Myler, a cyber warfare operations journeyman assigned to the 175th Cyberspace Operations Group of the Maryland Air National Guard monitors live cyber attacks on the operations floor of the 27th Cyberspace Squadron, known as the Hunter's Den, at Warfield Air National Guard Base, Middle River, Md., June 3, 2017. (U.S. Air Force photo by J.M. Eddins Jr.)
Tech. Sgt. Kyle Hanslovan, a cyber warfare specialist with the 175th Cyberspace Operations Group of the Maryland Air National Guard stationed at Warfield Air National Guard Base, Middle River, Md. Hanslovan served on active duty with the Air Force for six years and then worked as a cyber security contractor for the Department of Defense. In civilian life he is now the CEO of a cyber security start up firm, and believes the experience he gains from his civilian life greatly benefits the Air Force cyber mission, Oct. 30, 2017. (U.S. Air Force photo by J.M. Eddins Jr.)
Tech. Sgt. Kyle Hanslovan, a cyber-warfare specialist serving with the 175th Cyberspace Operations Group of the Maryland Air National Guard, works in the Hunter's Den at Warfield Air National Guard Base, Middle River, Md., Dec. 2, 2017. Hanslovan served on active duty with the Air Force for six years and then worked, in civilian life, as a cyber-security contractor for the Department of Defense and now as the CEO of a cyber-security startup firm. His continuing desire to serve his country led him to the Air National Guard, where he believes his civilian experience in defensive cyber-security greatly benefits his mission readiness for offensive cyber operations with the U.S. Air Force. (U.S. Air Force photo by J.M. Eddins Jr.)
The Norse data wall on the operations floor of the 275th Cyber Operations Squadron, called the Hunter's Den, provides real time worldwide cyber attack sources and
attack locations for the 175th Cyberspace Operations Group of the Maryland Air National Guard at Warfield Air National Guard Base, Middle River, Md., Dec. 2, 2017. This portion of the screen is focused on attacks within North America. (U.S. Air Force photo by J.M. Eddins Jr.)
Tech. Sgt. Kyle Hanslovan, a cyber warfare specialist with the 175th Cyberspace Operations Group of the Maryland Air National Guard stationed at Warfield Air National Guard Base, Middle River, Md. Hanslovan served on active duty with the Air Force for six years and then worked as a cyber security contractor for the Department of Defense. In civilian life he is now the CEO of a cyber security start up firm, and believes the experience he gains from his civilian life greatly benefits the Air Force cyber mission, Oct. 30, 2017. (U.S. Air Force photo by J.M. Eddins Jr.)
Cyber warfare operators assigned to the 275th Cyber Operations Squadron of the 175th Cyberspace Operations Group of the Maryland Air National Guard configure a threat intelligence feed for daily watch in the Hunter's Den at Warfield Air National Guard Base, Middle River, Md., Dec. 2, 2017. (U.S. Air Force photo by J.M. Eddins Jr.)
Master Sgt. Troy Young and Staff Sgt. Lindsey DeHart discuss watch updates on the operations floor of the 275th Cyber Operations Squadron, part of the 175th Cyberspace Operations Group of the Maryland Air National Guard at Warfield Air National Guard Base, Middle River, Md., Dec. 2, 2017. (U.S. Air Force photo by J.M. Eddins Jr.)