I was 'secure in the belief/knowledge' that I had done all I could. [=I felt confident because I believed/knew that I had done all I could]
They are 'financially secure'. [=they have enough money to live on; they do not have to worry about money]
You can access your bank account online using a 'secure' [='secret'] password.
(..) heroes one and all. Thank you. Maybe we should go around the table. Where's the CIA director? We're still working to set up a secure comm. The hell with secure comms. We have to get him patched in now... Cellphone, landline, Skype... Whatever we got. Who's got the networks? (..)2016 TvShow: Designated Survivor Title: Pilot Season: 1 Episode 1
(..) - Tom! - Did you see that? - Tom! - Did you see that? ...motorcade to smoke out any ambush. White House is secure. Let's go. contact today Mike, please, just tell us what you know. Capitol's been attacked. There's still no word on the President or his detail. (..)2016 TvShow: Designated Survivor Title: Pilot Season: 1 Episode 1