Let’s browse the web User browses to a website Website can download data to computer Website has embedded links from other sites Websites can download data to computer Website may have other hidden links such as web beacons Websites can download data to your computer Browser is generating it’s own data Then – you may get……………

Real life example According to http://www.ebizmba.com/articles/business-websites the number 1 business website is https://finance.yahoo.com 75 million unique visitors a month

Browsing History Internet Explorer Inside WebCache Url https://finance.yahoo.com/ 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How many third parties? Looking back at Yahoo they detail their 3rd party policies https://policies.yahoo.com/us/en/yahoo/privacy/topics/thirdparties/index .htm Analytics Partners Social Widgets Advertising Then my snipping tool ran out of batteries!!!

What Do They Do? “These companies may collect information about other apps on your various devices” “These providers can collect your information, including your IP address, page header information, browser information, and other information just as if you had visited their website” “This information also includes the kind of content or ads served, viewed or clicked on; the frequency and duration of your activities; the sites or apps you used before accessing our Services and where you went next; whether you engaged with specific content or ads; and whether you went on to visit an advertiser's website, downloaded an advertiser’s app, purchased a product or service advertised, or took other actions.” “In some cases, the third party may recognize you through its widgets even when you do not interact with the widget” “These companies may collect information to deliver you customized ads”

So what does this all mean?

Webcachev01.dat Internet Explorer <v10 History Cookies Folder with shortcuts Copy out and move around Cookies Folder with small cookie files Temporary Internet Files Folder with files locally cached Normally disregarded at logoff Internet Explorer v10+ All data is cantered around the webcache database

WebCache Changes made to core WinInet api in Windows Most user facing applications will use wininet and write into webcache Browsers Windows store apps Explorer Don’t be fooled by the name – it isn’t a cache Must be persisted to keep web data such as cookies and browsing history Latest Windows10 release has no cookie files Size begins at 24/32MB and grows as the system is used Manual deletion of data does not shrink the size of the database

Non-Microsoft Browsers More businesses having to support multiple browsers

Resultant Issues User Experience is degraded Storage Costs User logon times increased IE launch and browsing slows as webcache grows Web data can cause web applications to fail Storage Costs Largest database recorded 9GB We have been seen is 2GB Cookie files can run into many thousands Adversely affects I/O on SAN and file servers Network Utilization Most enterprises have 2 or more browsers Windows 10 has greater integration – double the size compared to Windows 7 machine

Avanite WebData Control Only enterprise solution to address the issue Configured via Group Policy Delete the data you don’t need – keep just the data you want Third party data Tracking and Advertising Cookies Provide reports of data cleansed and remaining

What Our Customers Say Profile size reduced by 82% Login times reduced by 30% Number of cookies reduced by 89% even with Adblocker installed Login Time from 10 minute to under 1 minute 30% quicker user logon / logoff times Profile sizes reduced by over 50% Number of cookies reduced from 50,000 to 1,000 Reclaimed 100GB of SAN storage Profile and IE support calls reduced by 70% Users were unable to write to CMS database with IE, with WebData Control there are no issues

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