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Hafnium (sometimes styled HAFNIUM; also called Silk Typhoon by Microsoft) is a cyber espionage group, sometimes known as an advanced persistent threat, with alleged ties to the Chinese government. [2] [3] [4] Hafnium is closely connected to APT40 .
The first breach of a Microsoft Exchange Server instance was observed by cybersecurity company Volexity on 6 January 2021. [1] By the end of January, Volexity had observed a breach allowing attackers to spy on two of their customers, and alerted Microsoft to the vulnerability. After Microsoft was alerted of the breach, Volexity noted the ...
The hafnium nitrides are the various salts produced from combining hafnium and nitrogen. The two most important such are hafnium (III) nitride, HfN; and hafnium (IV) nitride, Hf 3 N 4. None can be prepared from hafnium oxide, but must instead be prepared from the elemental metal or a different hafnium nitride salt; attempted nitridation of the ...
FTX customers are already out almost $9 billion after the crypto exchange, once valued at $32 billion, collapsed in November and soon entered bankruptcy proceedings. And now, some hackers are ...
Hafnium carbide (Hf C) is a chemical compound of hafnium and carbon. Previously the material was estimated to have a melting point of about 3,900 °C. [2] More recent tests have been able to conclusively prove that the substance has an even higher melting point of 3,958 °C exceeding those of tantalum carbide and tantalum hafnium carbide which ...
The hafnium controversy was a debate over the possibility of 'triggering' rapid energy releases, via gamma ray emission, from a nuclear isomer of hafnium, 178m2Hf. Per event the energy release is 5 orders of magnitude (100,000 times) more energetic than in a typical chemical reaction, but 2 orders of magnitude less than a nuclear fission reaction.
Exchange Web Services (EWS), an alternative to the MAPI protocol, is a documented SOAP -based protocol introduced with Exchange Server 2007. Exchange Web Services is used by the latest version of Microsoft Entourage for Mac and Microsoft Outlook for Mac - since the release of Mac OS X Snow Leopard Mac computers running OS X include some support ...
Natural hafnium ( 72 Hf) consists of five observationally stable isotopes ( 176 Hf, 177 Hf, 178 Hf, 179 Hf, and 180 Hf) and one very long-lived radioisotope, 174 Hf, with a half-life of 7.0 × 1016 years. [2] In addition, there are 34 known synthetic radioisotopes, the most stable of which is 182 Hf with a half-life of 8.9 × 106 years.