US telecom giant Verizon has agreed to pay a $7.4 million fine to settle a probe into its privacy practices, including accessing customer data for marketing purposes, officials said Wednesday.The Federal Communications Commission said Verizon failed to notify some two million of its landline customers about how their personal data would be accessed and used. Verizon also agreed to notify customers of their opt-out rights on every bill for the next three years, the FCC said.