Pinning Down Abuse on Google Maps - New York University7 locksmiths near me 3 “Locksmith”...
Transcript of Pinning Down Abuse on Google Maps - New York University7 locksmiths near me 3 “Locksmith”...
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Pinning Down Abuseon Google Maps
Univ of California, San DiegoDanny Y. Huang, Kirill Levchenko, Alex C. Snoeren
GoogleDoug Grundman, Kurt Thomas, Abhishek Kumar, Elie Bursztein
Presented at the International World Wide Web Conference in Perth, Australia on April 7, 2017.
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Maps SEO is based on physical proximity
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TraditionalSEO
Ranked by relevanceExample: pharma
MapsSEO
Ranked by proximityExample: locksmiths
How many and where?How to make money?
How to evade detection?Impact on users?
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7 locksmiths near me
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“Locksmith” located at UPS Store
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Fake locksmiths are an old problem
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Jan 2016
False sense of proximityMonetize from inferior service
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Overview of abuse on Google Maps
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Violation of ToSCaused harm to users
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Overview of abuse on Google Maps
Abusive listings2014 - 2015
15% reached users
Fake Locations (40%)
locksmiths, plumbers, garage door openers
Affiliate Fraud (13%)
hotels, restaurants
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Misc (47%)
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Affiliate fraudsters hijack hotel listings
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Paying for referral trafficDamages to branding
Reputable travel agency
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hotels
% of abusive listings in each country
Abuse varies across countries
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locksmiths plumbers, etc
0% 20% 40% 60% 100%
USA
India
80%% of abusive listings in each country
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How did scammers evade Google’s detection?
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Creating a free listing on Google Maps
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Verification via mail
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80% abusive listings verified through mail
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Creating listings by buying fake locations
Residential Commercial13
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Verifying listings using the same address
123 Main St
123 Main St Suite 456123 Main St #456#456 123 Main St
l23 Main St
Verify multiple listings
25% of abusive listings used this trick
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Impose a cutoff?
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Abusive listings verified at the same address
>1,000
101 - 1,000
11 - 100
2 - 10
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# Listings at same address
0% 20% 40% 60% 80% 100%Probability of abusive listings
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e.g. legit doctor listings at hospital
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Impact on end users?
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Quantifying impact on users
# of abusive search results# of search results
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Locksmiths*
11%* 11% of local search results for locksmiths in the US were abusive during our analysis period.
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Search results that are abusive
Locksmiths
11%Plumbers, etc
0.4%
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New York, NY
16%
West Harrison, NY*
84%
Restaurants
1%Hotels
1%
* 84% of search results for locksmiths in West Harrison, NY were abusive during our analysis period.
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Pie chart: abusive results that are restaurants
Locksmiths
11%Plumbers, etc
0.4%
Restaurants
1%Hotels
1%
19* For every 100 random abusive search results in the US, 2 were abusive locksmiths, while 47 were abusive restaurants.
* *
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Overall search results that are abusive
Locksmiths
11%Plumbers, etc
0.4%
Restaurants
1%Hotels
1%
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0.5%of search results in US were abusive*
* Out of 1000 random search results in the US, only 5 were abusive results during our analysis period.
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SEO based on physical proximity
Fake locations vs affiliate fraud
Hard to verify addresses at scale
Improved defenses by Google;abusive listings down by 70% from peak
Summary
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Thank you!
More info: http://sysnet.ucsd.edu/~dhuang/
Univ of California, San DiegoDanny Y. Huang, Kirill Levchenko, Alex C. Snoeren
GoogleDoug Grundman, Kurt Thomas, Abhishek Kumar, Elie Bursztein