Part of the Customer data management glossary:
Going dark is
slang for the sudden termination of communication. In the military, the term is
also used to describe a scenario in which communication appears to have ceased,
but in reality has just moved from a public communication channel, where it
could be monitored, to a private communication channel that prevents
eavesdropping.
According to
the United States Federal Bureau of Investigation (FBI), terrorists use mobile apps and encryption to go dark and make it difficult
for the Bureau to monitor conversations in legally-intercepted transmissions.
FBI Director James Comey described the going dark problem at the Aspen Security
Conference in July 2015: “ISIL's M.O. is to broadcast on Twitter, get people to
follow them, then move them to Twitter Direct Messaging" to evaluate them
as recruits. "Then they'll move them to an encrypted mobile-messaging app
so they go dark to us."
Mobile apps
that use end-to-end encryption (E2EE) are designed to protect data at rest
and in transit and keep the end user's text messages, emails and video chats
private and secure. However, the same technologies that protect user
communications from intruders make it impossible for government agencies to
make sense of the transmissions they legally gather, especially if the app uses
strong encryption.
The National
Security Agency (NSA) has proposed two potential encryption
methods to solve the going dark problem: split-key encryption and encryption
using "key escrow." In split key encryption, also known as secret
sharing, the technology vendor or service provider retains half of a master key
and law enforcement retains the other half so that decryption requires
participation of both parties. For key escrow, decryption requires multiple
keys, one of which is stored separately from the user, possibly in a government
agency location.
Opponents of
the proposed technologies maintain that both methods would be prohibitively
complex to implement and the complexity would provide points of entry that
would ultimately endanger user data security.
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https://www.youtube.com/watch?v=HTgYHHKs0Zw=========================================================
scoop_post=bcaa0440-2548-11e5-c1bd-90b11c3d2b20&__scoop_topic=2455618
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In addition to this blog, Netiquette IQ
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