Bittrex announced recently that it was delisting the three, giving users until January 15 to conduct any transactions.
A group called BISMUTH has reportedly attacked a number of targets linked to governments in Vietnam and France in recent weeks.
CipherTrace has filed two new Monero-tracing patents that they say will lay the groundwork for investigating XMR transactions and addresses.
Monero, the controversial privacy-focused digital currency network, was the victim of a unique Sybil attack that lasted 10 days.
ShapeShift has reportedly delisted a number of "privacy coins" from its platform due to regulatory risks associated with the use of Monero, DASH and Zcash.
The hard fork promises substantial improvement across nearly all aspects of the privacy coin's performance.
Researchers at Talos Intelligence Group have noticed a sharp rise in DNS requests connected with its command-and-control servers since the end of August.
The U.S. Department of Homeland Security has signed a $3.6 million contract with CipherTrace to create the Monero tracing tool.
Mitiga discovered the Monero mining malware when conducting a security audit for a financial services company.
The FritzFrog malware botnet has reportedly infected millions of IP addresses worldwide, targeting banks, educational and medical institutions, and government agencies.
The botnet uses a complex, extensive modular system and a mixture of techniques to compromise systems and hide its presence from end-users to mine for Monero.