(Bloomberg) -- Companies including Airbus SE, Deutsche Telekom AG and Orange SA have written to European Union officials to support a plan that would make it harder for US cloud providers to earn the highest cybersecurity certification. Most Read from BloombergSam Altman, OpenAI Board Open Talks to Negotiate His Possible ReturnBinance Pleads Guilty, Loses CZ, Pays Fines to End Legal WoesNvidia Fails to Satisfy Lofty Investor Expectations for AI BoomOpenAI in ‘Intense Discussions’ to Quell Potent