Questions tagged [fraud-prevention]

Fraud-prevention is the proactive identification of the causal and enabling factors of fraud, to prevent fraud from happening in the first place. This tag is for programming questions related to detecting and preventing fraud.

Filter by
Sorted by
Tagged with
29votes
3answers
12kviews

How is click-fraud detected? [closed]

Which methods do Google (and other PPC companies) use to prevent click fraud?
user avatar
  • 23.9k
23votes
2answers
31kviews

Need a data set for fraud detection [closed]

I have a fraud detection algorithm, and I want to check to see if it works against a real world data set. My algorithm says that a claim is usual or not. Are there any data sets available?
user avatar
14votes
0answers
8kviews

How to protect digital goods from chargebacks [closed]

Ok I'm going to talk about paypal. The reason for this is it's really hard to get a merchant account that will accept that you are selling digital goods. So for that reason paypal is the only simple ...
user avatar
  • 971
11votes
1answer
28kviews

Check if paypal email address is a verified user

I would like to check if a paypal user who tries to buy something from my site has a verified account before he makes purchase. Once the user isn't verified, any payment he/she makes would fail. ...
user avatar
10votes
3answers
8kviews

Detecting people sharing login / account information for a website

I have a website that contains a secure area accessible by logging in with account info. Within the secure area, I have some expensive IP. I have been finding that people are sharing their passwords ...
user avatar
  • 567
10votes
4answers
590views

Limiting impact of credit card processing scripts/bots

I'm involved in building a donation form for non-profits. We recently got hit by a fast round of low dollar submissions. Many were invalid cards, but a few went through. Obviously someone wrote a ...
user avatar
  • 2,941
10votes
4answers
2kviews

Generating and securing gift card codes

I'm working for a company that is generating gift card codes which can be used to pay for goods on online stores. I'm wondering what the most secure way of generating these gift card codes are. The ...
user avatar
  • 4,098
10votes
2answers
2kviews

facebook audience network always quality check fail

facebook audience network always quality check fail. I followed all best practices which show on this link. https://developers.facebook.com/docs/audience-network/best-practices and uploaded many ...
user avatar
9votes
5answers
1kviews

Best way to prevent fraud in marketplace app?

I'm developing a marketplace website where tutors and students can find each other. I'm building an online payment system (much like elance or guru.com) where the tutor can get paid and we take a cut....
user avatar
7votes
1answer
11kviews

Get the age of a Gmail account

My team is discussing how we can improve the fraud prevention algorithms on a customer's platform. It's not surprising that email addresses used in fraudulent activities are often registered with free ...
user avatar
6votes
11answers
2kviews

Regex for keyboard mashing

When signing up for new accounts, web apps often ask for the answer to a 'security question', i.e. Dog's name, etc. I'd like to go through our database and look for instances where users just mashed ...
user avatar
4votes
1answer
929views

Advice on stopping donation fraud

I work for a non-profit organisation and have created and online donations page. Recently this donations page has been used to validate stolen credit card details via the process known as Carding. ...
user avatar
4votes
2answers
2kviews

How to avoid abusing your REST API? block to many calls from same client JAX-RS (Dropwizard)

Not sure if I am right but lets assume I have an REST API and endpoint that, for example, creates some resource, lets say @POST to create User. How to protect my app from users that do for-loop with ...
user avatar
  • 3,776
3votes
4answers
4kviews

Detecting throw away and virtual Credit Cards [closed]

The type of business I run allows customers to get results before they pay. I take their credit card information when they sign up, and afterwords anywhere from a week to a month charge them for my ...
user avatar
  • 307
3votes
1answer
882views

Securing tincan course agains replay / fraudulent statements

We are having courses using the tincan api to report progress in courses to our own learning record store (LRS). The courses are provided by a third party and run in the users browser as HTML pages. ...
user avatar
  • 3,714
3votes
2answers
351views

Suspicions regarding Magento licencing [closed]

I have been doing webdesign for a small business in Denmark, which alrady have a deal with a larger company to create the final site. Among this companys proposal, I see that they charge a rather ...
user avatar
  • 8,749
3votes
1answer
4kviews

How to completely detect Proxies using PHP

I would like to fully detect proxies before someone enters to my website, to prevent fraudulent actions. Is there any script in PHP which could actually detect all proxies, like Transparent, ...
user avatar
3votes
1answer
2kviews

predicting non-random number from a series of random number

I got the following interesting task: Given a list of 1 million numbers with 16 digits (say, credit card numbers), which includes 990,000 purely random numbers generated by a computer system, and 10,...
user avatar
  • 18.7k
3votes
2answers
256views

Preventing Data Fraud and Deletion in SQL Database

We have an application that is installed on premises for many clients. We are trying to collect information that will be sent to us at a point in the future. We want to ensure that we can detect if ...
user avatar
3votes
1answer
82views

SQL Query for data with multiple conditions

I'm trying to find a way to create a query that returns transactions from individuals when they submit transactions that are traditionally accompanied by other transactions. Example (with data below): ...
user avatar
3votes
2answers
137views

How to get the real identity of a user when selling digital goods? [closed]

In my country we have a very peculiar payment system that it is based on ATM machines, we generate a reference that the user will use in a ATM machine to do the payment. Lately I've had some troubles ...
user avatar
  • 23k
2votes
1answer
4kviews

What are the steps needed to use Mahout Native Bayes Classifier Algorithm?

I am trying to use Native Bayes Classifier in detecting fraud transactions. I have a sample data of around 5000 in an excel sheet, this is the data which I will use for training the classifier and i ...
user avatar
  • 61
2votes
3answers
836views

How important is it to use SSL on every page of your website? [closed]

Recently I installed a certificate on the website I'm working on. I've made as much of the site as possible work with HTTP, but after you log in, it has to remain in HTTPS to prevent session hi-...
user avatar
  • 253k
2votes
3answers
739views

Paypal as payment gateway? [closed]

i have to choose between several payment gateways. I heard that PayPal is quite a mess and there were several fraud-issues? Does some of you have experiences with PayPal? Thanks in advance
user avatar
  • 18.4k
2votes
3answers
1kviews

Fraud Prevention Algorithm

We're looking for a good way to stop fraud on our website. We have a site with constant traffic coming in - we have regular access to the normal info (IP, session, cookies etc), plus info that the ...
user avatar
2votes
3answers
353views

Template Matching for relational database

I am trying to do the following: we are trying to design a fraud detection system for stock market. I know the Specification for the frauds (they are like templates). so I want to know if I can design ...
user avatar
  • 1,098
1vote
3answers
1kviews

Address Verification System (AVS) ) Check for eCommerce

My company is using the Stripe API to process credit cards. Stripe offers Zip code and Address Verification System (AVS) checks. AVS checks the street number the user entered against the street ...
user avatar
  • 2,523
1vote
1answer
7kviews

How to detect auto clicker app used by android user?

Some android user using auto-clicker apps available on play-store to click multiple time. So I want to detect/block user who tries to use auto-clicker.Is there any way in android to detect such ...
user avatar
1vote
2answers
480views

Python Fraud Detection Classification Algorithms

I am working on a credit card fraud detection model and have labeled data containing orders for an online store. The columns I am working with is: Customer Full Name, Shipping Address and Billing ...
user avatar
  • 57
1vote
1answer
42views

Is it possible for initiator of a Flow to bypass check on an attribute of state it is not consuming?

Scenario State1->Flow1->State2 (State1 is input and State2 is output) State2->Flow2->State3 (State2 is input and State3 is output) In Flow2, State2 is the only input state but Initiator ...
user avatar
  • 170
1vote
2answers
463views

How to protect against fraud?

I have a VoIP calling company for a Russian market with a Russian website where people can sign up for an account, buy credit and make calls. My service is not even popular and I have only ~100 ...
user avatar
  • 172
1vote
1answer
46views

How to make sure an img tag was seen by browser user?

Imagine we have two similar images with different sizes in a Webpage which one of them might be hidden by CSS @media rules. Then i need a proper way or Javascript event to detect that at least one ...
user avatar
1vote
2answers
319views

What happens if a botnet uses http requests to drain my Amazon AWS server?

Im going to launch an app and Im worried if my competitors would just kill me by draining my Amazon AWS resources by using a botnet to send gibberish http requests to my Amazon AWS Account. I only got ...
user avatar
1vote
2answers
5kviews

Android How can I prevent a user to extract APK of my application?

I know that there is a way to prevent a user to extract APK of our applications, but I don't know how to do this. Do you know how? For example, if I use Astro File Manager to extract the APK of an ...
user avatar
  • 5,032
1vote
1answer
337views

Crowdsourcing reliability measurements - spam/fraud detection

I'd like to collect some kind of geographical information from website users - for given set of data they will mark checkbox indicating whether place has or has not given property. Are there any tools/...
user avatar
  • 12.6k
1vote
1answer
106views

Where to get SIFT_WEBHOOK_SECRET_KEY for your Sift Science decisions?

I'm working on integrating back-end decisions based on the result of Sift Science's Workflows I followed this decision webhook tutorial but I don't know where exactly to get the value of ...
user avatar
1vote
1answer
472views

Feature engineering for fraud detection

I'm doing some research into fraud detection for academic purposes. I' d like to know specifically about techniques for feature selection\engeneering from a transactional dataset. In more details, ...
user avatar
  • 32.8k
1vote
2answers
3kviews

Use of Facebook "user_photos" permission

We are currently working on a project which aims to minimize fraud in our e-commerce platform. In particular we seek to avoid fraud of users with multiple accounts (same human behind those accounts). ...
user avatar
1vote
1answer
485views

prevent user interference in html5 slot machine game

i working on simple html5 slot machine , now im looking for away to prevent user bad behavior like be man in the middle and send bad requests to the server and get point which cheating . what is the ...
user avatar
  • 27.8k
1vote
1answer
370views

How google adsense to filter the invalid click?

How google adsense to determine the ads which was clicked is valid or invalid(click by a person maliciously or by bot)? I know a company doing these kind of work. http://www.adometry.com/ Formerly ...
user avatar
  • 1,112
1vote
0answers
22views

How to randomise the rebalancing of a dataset

In python I am trying to rebalance a dataset which contains approximately 4000 transactions for a single credit card number, which are all ordered by time. There is a large class imbalance between ...
user avatar
1vote
0answers
24views

Dealing with imbalanced datasets in classification

I have a large dataframe based in Accounting Fraud which I would like to resolve the problem of imbalanced data. First of all, I split the data frame into 2: X (variables) and y (the goal, which is: ...
user avatar
  • 11
1vote
1answer
359views

How to filter fake website traffic, if it comes with utm-marks?

Example: Site A (me) sells 2 000 clicks to site B. Also, "utm_source=A" is used by site B owners in their Google.Analytics. Then comes the fraud-man, who sends additional 10 000 visitors to site B - ...
user avatar
0votes
1answer
2kviews

Separating BIN from Stripe.js

I want to use Stripe for payments, but want to be able separate the BIN/IIN from the 16 digit credit card number the user enters, before Stripe.js encrypts all the digits bar the last 4 ie. ******...
user avatar
0votes
3answers
98views

Need some insight on Https

Excuse me if this question is really naive, but I searched as much as I could without being able to find relevant answers. I spent the last three days trying to understand how https works. All I knew ...
user avatar
0votes
2answers
167views

User ID verification

If I am setting up a site how would I go about ensuring that the person who gives me a credit card number (for instance) is the person who is authorized to use it? Maybe more generally how would I go ...
user avatar
  • 770
0votes
1answer
48views

Get User Set Filters using Gmail API?

I have an application that rewards users for placing orders with certain merchants and we are planning on connecting to our user's inbox (with their consent of course!) to verify and confirm that an ...
user avatar
0votes
1answer
43views

How to create a dataframe with combinations of values within a column

Alright guys, this one's tough. The subject of this ask is based on fraud data, rules and payments - i think it's easier to picture what i'm trying to do with a little background. I have a ...
user avatar
  • 711
0votes
1answer
2kviews

DataLossError: Unable to open table file error in TensorFlow

i have been studying for a while this kaggle link Predicting Fraud with TensorFlow . The dataset releated to fraud . He commented on line 33 , but when i try to rewrite codes that about saving/...
user avatar
  • 43
0votes
1answer
344views

How to stop fake web traffic from internet?

I have a website that pays users for showing advertising on shortened links. I recently have someone who is trying to boost his earnings by sending fake traffic to the site. It is not only smashing ...
user avatar

15 30 50 per page