If the psiphonite and the host already knew each other, they could simply communicate by secure e-mail, he said.

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In the 1990s, the Clinton administration pushed for the adoption of hardware backdoors to allow government to read otherwise secure e-mail as it saw fit.

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And while you are taking steps to secure your e-mail, you would be well-advised to make sure your WiFi connection is secure.

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"We urgently need to start reinforcing the system that is currently used to authenticate and identify secure websites and e-mail systems, " said Mr Eckersley.

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In a 2010 study done at Kaiser Permanente reported in Health Affairs of 35, 423 people with diabetes, hypertension, or both, the use of secure patient-physician e-mail within a two-month period was associated with a statistically significant improvement in effectiveness of care as measured by the Healthcare Effectiveness Data and Information Set (HEDIS).

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In third phase, users were allowed secure access to their government e-mail, calendar and contacts after authenticating using a federally-mandated CAC smart card reader.

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The safest alternative payment service, according to Forzley, is Secure-ebill, where a customer provides only a name and e-mail address to the merchant, which in turn sends a bill electronically.

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In parallel, define a security architecture and migration strategy that provides security through browsers, Secure Sockets Layer and passwords in the short run, and gets you started on PKI by deploying technologies such as IP Security virtual private networks and the Secure Multi-purpose Internet Mail Extensions e-mail standard.

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So instead of throwing up your hands that Web-based e-mail and online data transfers can never be secure, seek out and use the security tools that already exist.

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Every time an employee opens a confidential client e-mail or downloads a document detailing internal strategy from a location other than the secure office network, that information is at risk for exposure to criminals, competitors and other unintended audiences.

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