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Granular Sender Governed Method to Counter Data Remanence Over a Rich Email Client

IP.com Disclosure Number: IPCOM000198199D
Publication Date: 2010-Jul-29
Document File: 3 page(s) / 25K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a granular sender governed method or secure purge of data remanence over rich email client compact data structure

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Granular Sender Governed Method to Counter Data Remanence Over a Rich Email Client

When a sender sends an email ( which as per the sender contains highly confidential data or

private data) may expect certain level of secure purge of data remanence to be followed by all

the recipient receiving the data ( so that the data once deleted by the recipient cannot be retrieved by malicious users). Despite the sender being the rightful owner of the data,the sender still does not have any control over the level of secure purging required for sender's email at the recipient side - to help protect the leakage of the data. This is another problem not addressed by any of the emailing systems.

If an enterprise user sends certain personal/business data via email that user is potentially the best user to judge the sensitivity of the content in that email and should be able to decide on the secure purge of data remanence level required for that email ( or its attachment), whenever it is deleted. For example,, User A joins an organization and emails personal information to a trusted

person in HR. The HR ( a legitimate user) uses the information and deletes the email from his

system. But since the current system does not provide levels of remanence, the footprint of the data passed to him still resides in the hard disk of the system and if the hard disk comes in the hand of a malicious user the malicious user can still retrieve the information. In such cases the sender of the email should have provisions to classify sender's email for a required level of remanence, which is missing in existing systems. Currently, the email/documents deletion in rich interface clients is treated at a high level with no provision for content based secure purge of data remanence. This proposal is for classifying the note objects at granular level, such that the DoD standards over secure purge of data remanence can be applied to highly sensitive information/fields only, causing the operation to be more efficient, faster and pragmatic.

Placement of Email ( rated for secure purge of data remanence) over a hybrid storage cloud secure purge of data remanence is a disk intensive process as it involves several levels of write cycles and hence is power intensive and has high affinity for heat dissipation. Storages today are hybrid in nature with a mix of regular 3.5'' drive as well as 2.5 '' Small factor drives. Small form factor enterprise hard drive technology consume less power and dissipate less heat as compared to its counterparts

Hence Small factor drives will be more suitable to store documents that require higher level of secure purge of data remanence as it will consume less power as well as dissipate less heat during the secure purge of data remanence process. Current email systems are not programmed to handle these aspects to decide ( or help the storage to decide) as to where the email with higher level of secure purge of data remanence should reside.

One can argue...