By Alan Baldwin LONDON (Reuters) - Chris Froome's credibility as triple Tour de France champion has only been boosted by the hacking of his private medical information, according to a South African physiologist who carried out tests on the Briton last year. Jeroen Swart, in an interview with the Cycling Tips website, suggested, however, that other data published by alleged Russian cyber hackers had weakened Team Sky's image as "squeaky clean, cleaner than the rest." A group, identified as APT28 and Fancy Bear by U.S. cyber-security researchers, last week revealed Therapeutic Use Exemptions (TUEs) for Froome and 2012 Tour winner Bradley Wiggins. Froome's information was already known. More...