{ "id": 175039, "title": "Brainstorm of Ideas Kaggle could do to prevent / reduce fraud", "url": "/competitions/siim-isic-melanoma-classification/discussion/175039", "author_name": "Signal", "post_date": "2020-08-16T21:06:44.592000", "votes": 4, "comment_count": 7, "views": 0, "content": "

Here are just a few things I think would help. Some of these are very minimal/speedbumps

\n
    \n
  1. Mandatory Introduction post
    2. \n
  2. Use SMS to verify user phone #
    3. \n
  3. Look for same IP Address/User Agent combination
    4. \n
  4. Look for same IP Address (less reliable)
    5. \n
  5. Physical postal mail user a code (PayPal does this), the user then enters it into the system to verify account.
    6. \n
  6. Set a tracking cookie in the browser and look for value
    7. \n
  7. Set a cross-browser cookie https://samy.pl/evercookie/ (cannot be deleted by the user)
    8. \n
  8. Force users to register with a credit card……yes this is extreme, but it greatly reduces fraud and is used by many platforms.
    9. \n
  9. Don't allow Yahoo, Gmail, Hotmail, etc accounts
    10. \n
  10. Require submissions to be digitally signed
    11. \n
  11. Force users to link to their PayPal account. This effectively pushes the verification issue to PayPal, which has proven to do a decent job in this department. Yes it would require everyone to have a PayPal account, but that could also be a means to pay proceeds for any winning competitions.
    12. \n
\n

What are your ideas?

", "messages": [ { "id": 973135, "postDate": "2020-08-17T06:04:18.303Z", "content": "

Kaggle is owned by google, so there's no way they won't allow usage of gmail/google account.

", "rawMarkdown": "Kaggle is owned by google, so there's no way they won't allow usage of gmail/google account.", "votes": 5, "replies": [ { "id": 975341, "postDate": "2020-08-18T08:55:10.787Z", "content": "

Tx, I was about to write this , LOL.

", "rawMarkdown": "Tx, I was about to write this , LOL." } ] }, { "id": 972945, "postDate": "2020-08-17T01:44:59.643Z", "content": "

Same IP address is a very bad idea. Some students use school wifi and their IP is the same. Are you gonna ban them???

", "rawMarkdown": "Same IP address is a very bad idea. Some students use school wifi and their IP is the same. Are you gonna ban them???", "votes": 5, "replies": [ { "id": 972989, "postDate": "2020-08-17T02:51:44.087Z", "content": "

I also work with my friend at the same IP a ton, sometimes at home, sometimes at a coffee shop. Perhaps a better idea would be to not allow VPN ip addresses, and if one IP has tons of consistent traffic at the same time, then inquire.

", "rawMarkdown": "I also work with my friend at the same IP a ton, sometimes at home, sometimes at a coffee shop. Perhaps a better idea would be to not allow VPN ip addresses, and if one IP has tons of consistent traffic at the same time, then inquire. ", "votes": 2 } ] }, { "id": 972816, "postDate": "2020-08-16T21:06:44.593Z", "content": "

Here are just a few things I think would help. Some of these are very minimal/speedbumps

\n
    \n
  1. Mandatory Introduction post
    2. \n
  2. Use SMS to verify user phone #
    3. \n
  3. Look for same IP Address/User Agent combination
    4. \n
  4. Look for same IP Address (less reliable)
    5. \n
  5. Physical postal mail user a code (PayPal does this), the user then enters it into the system to verify account.
    6. \n
  6. Set a tracking cookie in the browser and look for value
    7. \n
  7. Set a cross-browser cookie https://samy.pl/evercookie/ (cannot be deleted by the user)
    8. \n
  8. Force users to register with a credit card……yes this is extreme, but it greatly reduces fraud and is used by many platforms.
    9. \n
  9. Don't allow Yahoo, Gmail, Hotmail, etc accounts
    10. \n
  10. Require submissions to be digitally signed
    11. \n
  11. Force users to link to their PayPal account. This effectively pushes the verification issue to PayPal, which has proven to do a decent job in this department. Yes it would require everyone to have a PayPal account, but that could also be a means to pay proceeds for any winning competitions.
    12. \n
\n

What are your ideas?

", "rawMarkdown": "Here are just a few things I think would help. Some of these are very minimal/speedbumps\n\n1. Mandatory Introduction post\n2. Use SMS to verify user phone #\n3. Look for same IP Address/User Agent combination\n4. Look for same IP Address (less reliable)\n5. Physical postal mail user a code (PayPal does this), the user then enters it into the system to verify account.\n6. Set a tracking cookie in the browser and look for value\n7. Set a cross-browser cookie https://samy.pl/evercookie/ (cannot be deleted by the user)\n8. Force users to register with a credit card......yes this is extreme, but it greatly reduces fraud and is used by many platforms.\n9. Don't allow Yahoo, Gmail, Hotmail, etc accounts\n10. Require submissions to be digitally signed\n11. Force users to link to their PayPal account. This effectively pushes the verification issue to PayPal, which has proven to do a decent job in this department. Yes it would require everyone to have a PayPal account, but that could also be a means to pay proceeds for any winning competitions.\n\nWhat are your ideas?", "votes": 5 }, { "id": 973375, "postDate": "2020-08-17T09:18:05.107Z", "content": "

A short while after I signed up on Kaggle, #2 came into effect. Very annoying to give my phone number to Kaggle, but they demanded it. So, why have they removed it?

", "rawMarkdown": "A short while after I signed up on Kaggle, #2 came into effect. Very annoying to give my phone number to Kaggle, but they demanded it. So, why have they removed it?", "replies": [ { "id": 973389, "postDate": "2020-08-17T09:25:12.037Z", "content": "

I don't recall if they ever asked my number. It's not a bad idea…….but I mean people charging $1000 for Kaggle Medals can create all the phone numbers they want (google voice, etc)…….but I still think its good diligence.

", "rawMarkdown": "I don't recall if they ever asked my number. It's not a bad idea.......but I mean people charging $1000 for Kaggle Medals can create all the phone numbers they want (google voice, etc).......but I still think its good diligence." } ] }, { "id": 973238, "postDate": "2020-08-17T07:29:44.327Z", "rawMarkdown": "", "isDeleted": true } ], "comments": [ { "id": 973135, "author_name": "Sandy Khosasi", "author_url": "", "post_date": "2020-08-17T06:04:18.303000", "content": "

Kaggle is owned by google, so there's no way they won't allow usage of gmail/google account.

", "votes": 5, "replies": [ { "id": 975341, "author_name": "CPMP", "author_url": "", "post_date": "2020-08-18T08:55:10.787000", "content": "

Tx, I was about to write this , LOL.

", "votes": 0, "replies": [] } ] }, { "id": 972945, "author_name": "cat", "author_url": "", "post_date": "2020-08-17T01:44:59.643000", "content": "

Same IP address is a very bad idea. Some students use school wifi and their IP is the same. Are you gonna ban them???

", "votes": 5, "replies": [ { "id": 972989, "author_name": "Stanley Zheng", "author_url": "", "post_date": "2020-08-17T02:51:44.087000", "content": "

I also work with my friend at the same IP a ton, sometimes at home, sometimes at a coffee shop. Perhaps a better idea would be to not allow VPN ip addresses, and if one IP has tons of consistent traffic at the same time, then inquire.

", "votes": 2, "replies": [] } ] }, { "id": 973375, "author_name": "Tord Malmgren", "author_url": "", "post_date": "2020-08-17T09:18:05.107000", "content": "

A short while after I signed up on Kaggle, #2 came into effect. Very annoying to give my phone number to Kaggle, but they demanded it. So, why have they removed it?

", "votes": 0, "replies": [ { "id": 973389, "author_name": "Signal", "author_url": "", "post_date": "2020-08-17T09:25:12.037000", "content": "

I don't recall if they ever asked my number. It's not a bad idea…….but I mean people charging $1000 for Kaggle Medals can create all the phone numbers they want (google voice, etc)…….but I still think its good diligence.

", "votes": 0, "replies": [] } ] }, { "id": 973238, "author_name": "", "author_url": "", "post_date": "2020-08-17T07:29:44.327000", "content": "", "votes": 0, "replies": [] } ], "raw_markdown_by_id": { "973135": "Kaggle is owned by google, so there's no way they won't allow usage of gmail/google account.", "972945": "Same IP address is a very bad idea. Some students use school wifi and their IP is the same. Are you gonna ban them???", "972816": "Here are just a few things I think would help. Some of these are very minimal/speedbumps\n\n1. Mandatory Introduction post\n2. Use SMS to verify user phone #\n3. Look for same IP Address/User Agent combination\n4. Look for same IP Address (less reliable)\n5. Physical postal mail user a code (PayPal does this), the user then enters it into the system to verify account.\n6. Set a tracking cookie in the browser and look for value\n7. Set a cross-browser cookie https://samy.pl/evercookie/ (cannot be deleted by the user)\n8. Force users to register with a credit card......yes this is extreme, but it greatly reduces fraud and is used by many platforms.\n9. Don't allow Yahoo, Gmail, Hotmail, etc accounts\n10. Require submissions to be digitally signed\n11. Force users to link to their PayPal account. This effectively pushes the verification issue to PayPal, which has proven to do a decent job in this department. Yes it would require everyone to have a PayPal account, but that could also be a means to pay proceeds for any winning competitions.\n\nWhat are your ideas?", "973375": "A short while after I signed up on Kaggle, #2 came into effect. Very annoying to give my phone number to Kaggle, but they demanded it. So, why have they removed it?", "973238": "" } }