# Anonymous users cannot change unlimited length strings

<table><thead><tr><th width="138">Check ID</th><th>DOM_0004</th></tr></thead><tbody><tr><td>Category</td><td>Security</td></tr><tr><td>Summary</td><td>Anonymous users should not be able to change unlimited length strengths. Without this restriction a hacker could overload your app by trying to write unlimited amounts of data to this attribute.</td></tr><tr><td>Options</td><td>This check does not have any options.</td></tr><tr><td>Pass</td><td>Anonymous users do not have read/write access to unlimited length string attributes.</td></tr><tr><td>Fail</td><td>Anonymous users have read/write access to unlimited length string attributes.</td></tr></tbody></table>


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