2012年8月21日 星期二

Finding the smoking gun in a mountain of digital evidence

Preventing white collar crime has become a priority for the corporate community as new opportunities have arisen for fraud,Find solarpanel from a vast selection of Solar Panels. information leaks and identity theft.

Criminals can hide evidence of their misdeeds within massive volumes of data stored in digital devices. This makes traditional methods of electronic investigation ineffective and unsustainable.

Pricewaterhouse Coopers' 6th Global Economic Crime Survey found 47 per cent of Australian organisations participating in the report admitted to experiencing at least one instance of economic crime in the last 12 months, up 7 per cent from 2009.

Losses from these crimes were in excess of $5 million for 16 per cent of respondents. More often than not, investigations after the fact found the source of the crime was internal.

As crime grows, so does the volume and complexity of data investigators must examine.

The McKinsey Global Institute estimated that in 2009, companies with more than 1000 employees stored an average of 200 terabytes of data – or up to 200GB per user.

With data growing at a compound rate of 50 per cent each year, the average today would be closer to one terabyte per employee.Have you ever wondered about the moldmaking process?

Evidence can be stored in laptops,A brief description of how a drycabinet functions, desktops, smartphones, email repositories, file shares and archives. A company could also have Microsoft SharePoint sites or Lotus Notes databases. The use of cloud storage, webmail, social media and other off-premise services adds another layer of difficulty to an already complex situation.

Traditional electronic investigations would use forensic applications to examine each data source individually, than rely on human brain power to extract intelligence and find the links between them.

Finding anything valuable using these methods is prohibitively time consuming and resource intensive. Human investigators, however brilliant,Capture the look and feel of real stone or ceramictile flooring with Alterna. can’t hope to consistently and accurately find correlations across millions of data points.

Even when you have teams of investigators, it is easy to miss connections, particularly without an automated way to identify and correlate intelligence items. Crucial data can also be buried multiple levels deep within data repositories which many forensic tools may not recognise and simply skip over.

However, technology advances have also brought new ways for investigators to find evidence. Corporate and regulatory investigators can now embrace a way of working that makes it possible to extract and cross-reference intelligence across an entire data set, including multiple data repositories, devices and geographies.

Such tools automatically highlight and extract intelligence items such as names, phone numbers, email addresses and credit card numbers, as well as allowing investigators to customise and filter by the types of intelligence they want to extract. Advanced software can automatically correlate these intelligence items to show relationships between people and entities across multiple data sources and devices.

Consider this example. A government agency recently investigated a company fraudulently selling aircraft that didn’t exist. The agency had seized approximately 40 devices containing potential evidence,The stonemosaic is made of natural marble tiles with small cutting. including desktop and laptop computers and smartphones. Investigating each device sequentially using traditional methods would have required a team of up to 20 investigators.

The solution? The agency put forensic images of all of the data to be searched into a single storage location. They then used investigations software to process and cross-reference it which allowed a single investigator to quickly bring the most valuable evidence to the surface, enabling the agency to initiate charges.

In addition, by searching the data set for similar documents, the investigator unearthed a series of related companies conducting fraudulent transactions for aircraft parts, boats and other high-value products, which led to further charges.

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