Head of Germany's Wirecard rejects fraud allegations by short-seller
* Wirecard under attack by previously unknown research firm
* Key allegation relates to 2010 U.S. money laundering probe
* Shares down sharply since Feb. 24 report
* CEO says charges are "baseless" and "false conclusions"
By Eric Auchard, Jörn Poltz and Alasdair Pal
FRANKFURT/MUNICH/LONDON, March 15 (Reuters) - German payment processor Wirecard is the victim of "baseless" allegations by a previously unknown research firm that has dredged up long-discredited claims of financial fraud, its chief executive said in his first media interview on the subject.
Zatarra Research, which popped up on the web only shortly before launching attacks on Wirecard, has made repeated accusations via Twitter and in commentaries that expand on an initial report, released on Feb. 24, that caused Wirecard shares to tumble by 25 percent.
Zatarra said in the report that it aims to profit from a fall in the stock, which some UK and U.S. hedge funds have also been short-selling.
"We have investigated all allegations. Every single point is wrong. These are baseless," Wirecard Chief Executive Markus Braun told Reuters. Continuación...