Digital encryption is inherently faulty due to the incompatibility of physical and electromagnetic. At the electron level there might be electronic security but getting from that level to the human accessible level is insurmountable. Encryption products fudge the linkage with smoke and mirror analogues. "Pretty good" is one of the few crypto products which accurately describe what is possible. All the others exaggerate, exculpate for inevitable failures, prevaricate, slickly market, promise to do better with upgrades and/or new. Lately, comsec wizards market claims that's the best we can do, live with it, agitate for privacy legislation. Or cite Snowden's racketeering, SecureDrop, Signal, and continuous snake oiling. Full Disclosure web site covers this endless apologia pretty good. Background for the skeptical: The Inevitability of Failure: The Flawed Assumption of Security in Modern Computing Environments (NSA, 1998) https://cryptome.org/jya/paperF1.htm