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117
votes
7answers
17k views

How to use the Internet while Heartbleed is being fixed?

There are many websites who are not currently vulnerable, but I have no idea if they were vulnerable a few days ago. For example: twitter.com: Not vulnerable right now, but the certificate is from ...
50
votes
4answers
9k views

What is the difference between ftps and sftp? [duplicate]

Trying to set up a system for my 4 remote employees to transfer files. It has to be secure. Is SFTP better than FTPS? What is the difference?
36
votes
8answers
14k views

How much information can websites get about your browser/PC?

I am trying to determine if the information shown on www.whatsmyip.org is the absolute maximum amount of information that a webserver can obtain from a web visitor. Are there other sites that will be ...
15
votes
3answers
17k views

How secure is an SSH tunnel or connection?

I have often advised people to use an SSH tunnel to secure their browsing on open WIFIs or in other insecure situations. I was recently asked by a friend how secure a SSH tunnel is after I had ...
12
votes
2answers
422 views

Understanding phishing/basic internet security guide, for teens? [closed]

I just helped a 13 year-old relative set up a new Windows 7 desktop, making it as secure as I can remember knowing how to. I has been an hour, and he just came to me saying "I seem to have a virus.". ...
5
votes
1answer
2k views

Is my network infrastructure visible outside of my wireless router?

I have a wireless router which connects to the Internet. Do external sites and services know that I'm using a router and it is not a final PC? For that matter can external services (and perhaps my ...
4
votes
2answers
549 views

Connection to Google, Yahoo, Bing, Ask, etc. compromised via all devices on my home network - How?

I'm a very computer savvy guy (although not very networking savvy), and I may still be wrong about this, but I think my home network may be compromised somehow. I'd like to know if it's possible for ...
4
votes
2answers
621 views

Weird hits on port 2703

I'm getting these periodical console messages on my Mac: 7/22/11 8:01:03.925 AM Firewall: Stealth Mode connection attempt to UDP 10.0.0.1:2703 from 91.143.232.133:15881 7/22/11 8:01:05.885 AM ...
4
votes
2answers
1k views

Firefox: Any way to allow javascript to disable or replace the context menu only to specific domains?

This is something that's commonly abused, so I almost always want it to be off, except when I'm using a handful of large webapps that use the feature properly, such as Google Docs. I know there's a ...
4
votes
1answer
354 views

Why inputting 'nul' in windows cmd gives a certain error-message

Whenever I type 'nul' into the command prompt (whichever directory Im currently in) I get a "Windows Security"-popup saying this: Windows Security Your Internet Security settings prevented ...
3
votes
7answers
3k views

Why not open a PDF file in the browser but first save it to the harddisk?

Question Is it correct that saving a PDF to the hard disk first, and then opening it from there with some PDF reader (not the browser) is safer than opening it directly with the browser plugin? My ...
3
votes
3answers
696 views

Is an openVPN with ipv6 more secure than PPTP VPN with ipv4?

I have heard that using ipv6 in combination with a PPTP vpn can expose your true ip address, so I have been using a PPTP VPN with ipv4 for the past few months. I am considering switching to an openVPN ...
3
votes
1answer
615 views

Is it easy to hack a weak passworded linux pc from the Internet?

My question may seem very amateurish or even incorrect, but do please take in account that I'm a complete noob in computer and network security. I'm just trying to find out some information here. ...
3
votes
3answers
19k views

Why does this message 'Your internet security settings prevented one or more files from being opened' pop up?

On several occasion the message that your internet settings prevented one or more file from being opened pops up and I am unable to carry out the tasks further. Why is that ? One of the instance ...
3
votes
3answers
49k views

How to disable internet connection only for some standard user accounts in Windows 7 Ultimate?

There are many users in my machine with Windows 7 Ultimate installed. Some of them are standard user accounts that have no administrative access to the computer. I want them to be unable to connect to ...
3
votes
2answers
3k views

How to prevent some users in Windows 7 from accessing sites other than a set of certain sites?

I am using Windows 7 Ultimate with some user credentials on a single computer. I want to prevent some users from accessing sites other than *.stackexchange.com and stackoverflow.com. How to do this ...
3
votes
1answer
3k views

found a bunch of DO_NOT_TRUST_FiddlerRoot personal certificates installed on my system

I was looking at my personal certificates in Google Chrome and found a bunch of DO_NOT_TRUST_FiddlerRoot certs there. I don't know how these got there. Should I be concerned?
3
votes
2answers
1k views

How can my banking web site uniquely identify computers?

My online banking web site can uniquely identify computers (Windows OS) on my home LAN. Identity confirmation is done for each web browser on the computer. That is, when I try to access their web ...
2
votes
5answers
590 views

Looking for a replacement to current Antivirus Software [closed]

About 4 years ago, I found Kaspersky and have been using the most current version since. Most people try and argue the use of AVG or Avast to me, and there are some very solid reasons I do not want ...
2
votes
7answers
2k views

Remove Internet Security 2010 virus?

My system is infected with Internet Security 2010. I can't even go to task manager or boot in safe mode. I also can't even run any antivirus programs. Are there any solutions?
2
votes
2answers
3k views

Wifi password VS MACs filtering - in terms of speed vs security

Background First I need to say that I know about how better it is to secure the wifi network even with WEP , than to not secure it at all, and I know there is a thread asking a similar question like ...
2
votes
2answers
122 views

How to protect myself against an email identity scam?

I'm using Windows 7 and Windows Live Mail. Yesterday some spam email was sent from my computer to all of my contacts! How do I stop this? Is there any way to do a security prompt before email send ...
2
votes
1answer
317 views

Is HTTPS connection hijacking possible?

This really bothers me a long time, because.. to encrypt / decrypt data you first need to send a encryption key / decryption key (on an unencrypted connection) to the computer you are comunicating ...
2
votes
2answers
550 views

My gmail password hacked in Firefox?

While writing a message using Firefox suddenly my gmail login details, including password, were pasted into the body of my message at the current cursor position and in the browser's find field (whole ...
2
votes
1answer
274 views

Securing an Ubuntu Lucid web server

I have an Ubuntu Lucid server that is public facing. I haven't really configured much on it except installing SSH (sshd) and Apache (httpd); I don't have a firewall or anything. Are there some common ...
2
votes
1answer
1k views

What's the difference between a public, private, or work WiFi network, and what risks are there with each?

In Windows, you get asked if you are connected to a trusted or not trusted network. It gives you the option of deciding whether it is public, work or home. Why doesn't Linux ask me anything like ...
2
votes
2answers
117 views

Security with Email and Bank Accounts [closed]

I emailed a pdf of a bank statement to a small number of board members of a small volunteer organization. The account has additional security measures on it which include requiring two signatories on ...
2
votes
1answer
331 views

Spam email coming from name of person I know, but with wrong email address

I recently received a spam email as follows: From: Friend's name <dglee222@knu.ac.kr> Subject: Fwd: healthy belly fat loss without starvation To: Me <myemail@optonline.net>` it's just ...
2
votes
1answer
74 views

Recover from phishing and being a good citizen

There is a mail floating around which claims that someone you know wants to share a document with you and once you follow the link in the mail you get to a site that asks your google (or others) ...
2
votes
0answers
209 views

Two-factor authentication without a smartphone or peripheral device? [closed]

Believe it or not, but I don't have a smartphone. Or, maybe I do, but I don't want to have to whip it out just to log in to every site I use if I trust my home computer (or personal portable laptop) ...
2
votes
1answer
1k views

Trusted Site displaying as Unknown Zone (Mixed)

We have an application that must run in IE and the client insists the application runs as a Trusted Site. When we set the url as a trusted site in IE settings the login page loads fine and IE says it'...
2
votes
1answer
597 views

Internet Options window does not open

On a windows Server 2008R2 - while logged as the domain administrator. I am unable to open the Internet Options windows. Using the IE Tools: I get a restrictions error: Restrictions This ...
2
votes
0answers
687 views

How can I use a password with special characters in desktop programs?

At the moment I am concerned about the security of my Facebook account. I have taken advantage of Facebook's ability to accept very long passwords with special characters, and created a password that ...
1
vote
2answers
1k views

Networking packet sniffer for Linux that captures the application names?

I tried Wireshark. It shows the source and destination IP address, port number, and packet contents, but nothing about which application is using the packets. Apparently tcpdump is similar; network ...
1
vote
2answers
10k views

How to remove mDNSresponder from a Mac OS X Snow Leopard?

I got a message from WOW platform saying my machine was generating suspicious activity. I run AED4 and MacAffee last versions with 0 threats results. Then I turned to the Activity Monitor and checked ...
1
vote
2answers
6k views

Wireless network connection: Security Type: Unsecure

For some wireless network connections, Windows 7's connection choice menu shows a warning sign with text: information sent over this network might be visible to others. What does this mean? How risky ...
1
vote
2answers
242 views

Can a website know about my browsing history?

When I visit a website it sometimes puts cookies on my browser. Usually cookies keep track of browsing info from that particular site. If I don't delete those cookies and browse other websites, will ...
1
vote
2answers
106 views

Is there a way to audit the security of my passwords on the web?

With so many websites with unique login systems, is there a way for me to track, and improve the quality of my login credentials on various accounts while limiting the risk of someone gaining access ...
1
vote
3answers
474 views

Stop spamming activities coming from my emailaddress

I have had emails sent to all my contacts with spam like: viagra, medhealth, etc as if I sent it. How can I stop this?
1
vote
1answer
20 views

Can Powerpoints link to information online without user consent?

I recently read a superuser question here regarding whether or not PDF files could access the internet when someone opens them in Acrobat. This led me to wonder, when I open a powerpoint file, can it ...
1
vote
3answers
786 views

Can a virus or malware be bundled with a non executable download? [duplicate]

Can a virus or malware be bundled with a non executable download? For example, when choosing 'save link as' on an .mp3 or a .pdf file, is it possible for the download to include more than just the ...
1
vote
1answer
2k views

How does Google Chrome's Sandbox work?

I was reading some articles regarding Google Chrome's sandbox and watched a video but I don't have quite a full understanding of it. I read somewhere that it depends on Windows for its security so ...
1
vote
1answer
70 views

Public Wi-Fi and software updates

According to Microsoft, "Never update your software on a public Internet connection." So I have some questions. 1. What if a public Wi-Fi hotspot is the only Internet available, ever? Never update ...
1
vote
1answer
245 views

How to utilize username/password GET return from NoScript ABE

First, apologies for the cryptic title - let me explain: I'm at an airport that offers free wifi after you watch an advertisement. I did so in Firefox 4 running NoScript. I allowed scripts globally to ...
1
vote
1answer
22 views

What does this IPTable rule (SV-50313r2_rule) mean?

The operating system must prevent public IPv4 access into an organizations internal networks, except as appropriately mediated by managed interfaces employing boundary protection devices. What ...
1
vote
2answers
20 views

Can browser add-ons offering user-defined CSS (to override a site's css) see my passwords and userids?

A website I use often has awful pastel text colors which I find hard to read. The text is not crisp and there's low contrast. I know of a couple of browser add-ins that will let me style the pages as ...
1
vote
1answer
93 views

What does Windows Firewall do if I don't add a specific firewall rule?

Suppose I have a program which needs to connect to the Internet in order to work. Let's also say that I only want this program to communicate on private networks, so I add a firewall rule allowing it ...
1
vote
2answers
120 views

Security of accessing my home PC with dynamic DNS

I want to access my home PC when I am outside. I know this can be done using dynamic DNS (ex. DynDNS), but my question is around the security of doing so. If I was to set this up today, I will have ...
1
vote
1answer
465 views

How new AV companies deal with signature database?

How a new Internet-Security/Anti-Virus startup prepares its malware database? I have seen some new products that are able to detect viruses that were on the wild 10-15 years back.
1
vote
1answer
13 views

Internet Explorer and Zones on a website with multiple sources

If I add a site to the trusted sites zone and it has scripts from sites in the internet zone, how will it treat content loaded from sites in different zones? Will it treat everything on the page as ...