Spam is the use of electronic messaging systems (including most broadcast media, digital delivery systems) to send unsolicited bulk messages indiscriminately.

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9
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2answers
18k views

How was my Yahoo email account used to send spams

My yahoo email account was sending spams at about 6:42pm EDT (the spams show 3:42pm PDT) yesterday. I realized it by receiving several "Failure Notice" emails for Yahoo was unable to deliver the spam ...
1
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2answers
642 views

Is spam more likely to be sent to info@example.com? Would I be better off using a different address?

I think that when bots gather domain names or process a list of domain names, they create email addresses like info@example.com or support@example.com. Does selecting something different help to ...
1
vote
1answer
148 views

Reliability of DNSBLs for Stopping Forum Spam

I know that certain DNS blacklists are considered more reliable than others, in that they don't have as many false positives. I run a forum that is known to be spammed, and I've installed a mod to ...
8
votes
3answers
1k views

Hashcash, is this really used?

I just heard about this term, is it really used? The concept does not seem new, is it used and/or implemented in current technologies?
5
votes
6answers
4k views

How did the spam email sender get my name?

Some time ago I bought something online from a reputable website. I paid through my credit card and everything worked fine. The thing which is important to note is that the name used on the credit ...
9
votes
5answers
9k views

How and why do people spam my website form?

In have a web form on my website, and someone keeps sending annoying spam through it. I know Captcha can block this, but why do people spam my site - what's their benefit? How do they access my web ...
41
votes
3answers
2k views

What is the point of spam like this?

I fairly often happen across forums spammed with messages such as: Arugula (Eruca sativa) is an quarterly green, pretended or roquette. It's been Traditional times, overclever 20 flat has be ...
5
votes
1answer
118 views

How long can I store personal information on unconfirmed subscriptions?

I have a monthly newsletter. In my subscribe form I use a double opt-in method: The visitor subscribes. I send him a confirmation email. If I receive a reply, I add him/her to my system. In the ...
2
votes
4answers
378 views

How to prevent private data being disclosed to unwanted audience over internet?

Everyday, in order to subscribe to certain services on the Internet we are almost forced to disclose private data even though those services don't necessarily require it. For example, I need to ...
2
votes
2answers
275 views

Is it unsafe to allow apps other than Outlook to send email via the Exchange server?

My application is a .NET Windows Forms client, one of whose functions is to allow the user to send personalised mailshot emails to opted-in recipients stored in the database. The emails are sent ...
0
votes
1answer
935 views

Email not received when sent by our app, received when sent by outlook [closed]

We have an application that sends mail in bulk, via a mail provider (Mailjet). Our clients are professional organizations, and they send important mails about meetings and stuff like that, to about 10 ...
2
votes
2answers
661 views

Killing IP connections who “spam” with requests

How can I go about killing IP connections that seem to be sending a lot of requests to the same url? Let's say I have someone who requests the same url for more than 10 times in 5 seconds, I want to ...
1
vote
2answers
828 views

How to react on a message about a pending account ban on Facebook? [closed]

Are you getting this message on chat? LAST WARNING : Your account is reported to have violated the policies that are considered annoying or insulting Facebook users. Until we system will disable ...
8
votes
1answer
440 views

Cheap to validate yet expensive to compute hashing algorithm

I am looking for a hashing algorithm somewhat like bcrypt, except that I would like validation to be extremely cheap. As an anti-spam measure I would like to require my clients spend say, half a ...
4
votes
3answers
212 views

There's a lot of spam, and hacked sites are often used to distribute it [duplicate]

Possible Duplicate: What are common/official methods of reporting spam/phishing/nasty-grams to organizations? My production application receives a lot of emails and I can easily detect spam ...
7
votes
3answers
312 views

What are common/official methods of reporting spam/phishing/nasty-grams to organizations?

A user of mine just received a phishing email claiming to be the IRS. What methods of reporting are available, and what should be included?
0
votes
1answer
319 views

Wordpress online pharmacy hack? [duplicate]

Possible Duplicate: Protecting WordPress installations anybody knows how to protect your WordPress website from online pharmacy spam, even after deleting all spam files and deleting spam ...
6
votes
2answers
388 views

Statistics on purposes of viruses/malware

Are there any resources that analyze the purpose or goal or the major viruses/malware out in the wild today? For example, what percentage are used to construct botnets (for DDoS or something else)? ...
5
votes
6answers
349 views

Spam fighting idea

I have this crazy idea that spam e-mail would not be worth the time of the senders. This is how it's going to work. Someone sets up a reputation-based site, much like stackexchange sites, where ...
7
votes
4answers
371 views

Next steps after webmail account was compromised

John Doe told me the following story: I got a mail from a good friend. It just contained a single link. That seemed odd but I didn't think a lot about it. After clicking on the link, the web site ...
2
votes
1answer
540 views

What is this spam used for?

Recently my secondary e-mail address was exposed by an incident, and soon I received this spam. What is this spam used for?
33
votes
2answers
9k views

What malicious things can happen when clicking on links in email?

I've received a spam from one of my friends (well I'm sure he didn't send it). so there's this link, and i'd thought what exactly would be the implications of clicking the link (i've not clicked it ...
3
votes
2answers
275 views

Legal process for suing joejobber?

I'm currently being joejobbed, and want to sue the joejobber. Details: I have real damages: the joejob causes me to receive fake bounces, which: stop/delay my receipt of legitimate mail, since ...
12
votes
4answers
589 views

what to do after suspected intrusion on hobby webserver

I maintain a server to host my files and a number of websites for hobbies and friends. I just noticed that the site summary being returned in google for one of my domains were all porn related ...
10
votes
2answers
1k views

Caller ID Spoof and Text Spams – How do they work?

(Posted here after a comment/suggestion from: http://superuser.com/questions/254340/caller-id-spoof-and-text-spams-how-do-they-work. Apologies if deemed not appropraite) A lot of people will have at ...
6
votes
1answer
3k views

How to create your own RBL DNS Blacklist to prevent spam

I am getting sick of reporting the same old chinese emails to Spamcop now and would like to make my own small RBL list that I can easily add blocks of IP's to. I have a spare PC and static IP address ...
6
votes
2answers
1k views

spam with my own domain

At my work we have a very tricky issue with spam. We use postfix, and recently began to receive several spams mail with our own domain. This is obviously very prejudicial for us, because many ...