Firstly, these are charges. Secondly, this sounds like either the guy is stupid or the whole thing looks rather fraudulent. Guy allegedly sends info to foreign government who seems to have turned it over to the US. It’s not even an interesting book or movie plot.

And, Proton Mail was founded by CERN engineers and is based in Geneva, Switzerland. How spooky is that? The head guy is US trained ethnic Chinese. It says on their web site that he has lived in Taiwan, the US and Switzerland. It doesn’t say where he was born and grew up.

At the end of last year, the FBI’s embassy attaché -located in one of 63 countries where the US has embassies – allegedly “obtained a package representatives from COUNTRY1 had received in April 2020 through a mail carrier from the U.S. by an unidentified subject in an attempt to establish a covert relationship.

He also allegedly says “This is not a hoax”, which suggests that it might be a hoax.

Archive of 63 FBI legats

According to the charges: “The FBI Retrieves Package Containing U.S. Navy Documents from LEGAT in COUNTRY1

6. On or about December 20, 2020, the FBI’s attaché (“LEGAT”) in COUNTRY1 obtained a package representatives from COUNTRY1 had received in April 2020 through a mail carrier from the U.S. by an unidentified subject in an attempt to establish a covert relationship. The package contained U.S. Navy documents, a letter containing instructions, and an SD card containing specific instructions on how COUNTRY 1 should respond using an encrypted communication platform, and additional documents.

7. In the letter, the sender stated a desire to sell documents containing U.S. Navy information marked CONFIDENTIAL that included printouts, digital media files containing technical details, operations manuals, and performance reports. The letter requested the transmission of the enclosed technical data to COUNTRY 1’s military intelligence agency. The sender wrote: “I apologize for thispoor translation into your language. Please forward this letter to your military intelligence agency. I believe this information will be of great value to your nation. This is not a hoax.”

8. The package that contained the material described above was a brown envelope with four U.S. postage stamps, a postal barcode, and a sent date of April 1, 2020. The return address was identified as a location in Pittsburgh, Pennsylvania.

9. A subject-matter expert at the U.S. Navy with knowledge of the documents included in the package sent to COUNTRY I informed the FBI that these documents were U.S. Government documents that contained Restricted Data

ProtonMail is an end-to-end encrypted email service founded in 2013 in Geneva, Switzerland. ProtonMail uses client-side encryption to protect email content and user data before they are sent to the ProtonMail servers. The service can be accessed through a webmail client, the onion router (also known as the Tor) network, or dedicated iOS or Android apps. The service is run by Proton Technologies AG. The company also operates ProtonVPN, a VPN service. In my training and experience, individuals who engage in activities that they wish to keep hidden or secret, or when they wish to keep their location hidden or secret, use an encrypted email service like ProtonMail

44. From October 2012 to the present, JONATHAN TOEBBE has worked on matters of naval nuclear propulsion. JONATHAN TOEBBE has been assigned to the Reactor Engineering Division of the U.S. Navy, which is responsible for new and operating reactor plant noise and vibration technology and for assisting with reactor plant shock technology and design, manufacturing, and testing. JONATHAN TOEBBE has also been assigned to Bettis Atomic Power Laboratory, a U.S. Government-owned research and development facility in the Pittsburgh suburb of West Mifflin, Pennsylvania that works exclusively on the design and development of nuclear power for the U.S. Navy. During one or both of these assignments, JONATHAN TOEBBE had access to the U.S. Navy information passed in both the physical letter to COUNTRY 1 as well as the electronic U.S. Navy information passed in the dead drops on June 26, 2021, and August 28, 2021, which is described below in paragraphs 52-64.

45. On September 28, 2017, JONATHAN TOEBBE was released/discharged from Active Duty and maintained a reserve obligation termination date of July 23, 2020. The reason listed for his separation was that JONATHAN TOEBBE completed his required active service.

46. On March 25, 2020, JONATHAN TOEBBE’s TS clearance was renewed. This renewal was just days before the April 1, 2020 postmark date on the package sent to COUNTRY 1….” Case 3:21-mj-00138-RWT Document 1-1 Filed 10/08/21 23 pages

Department of Justice
Office of Public Affairs

Sunday, October 10, 2021
Maryland Nuclear Engineer and Spouse Arrested on Espionage-Related Charges

Jonathan and Diana Toebbe, both of Annapolis, Maryland, were arrested in Jefferson County, West Virginia, by the FBI and the Naval Criminal Investigative Service (NCIS) on Saturday, Oct. 9. They will have their initial appearances on Tuesday, Oct. 12, in federal court in Martinsburg, West Virginia. For almost a year, Jonathan Toebbe, 42, aided by his wife, Diana, 45, sold information known as Restricted Data concerning the design of nuclear-powered warships to a person they believed was a representative of a foreign power. In actuality, that person was an undercover FBI agent. The Toebbes have been charged in a criminal complaint alleging violations of the Atomic Energy Act.

“The complaint charges a plot to transmit information relating to the design of our nuclear submarines to a foreign nation,” said Attorney General Merrick B. Garland. “The work of the FBI, Department of Justice prosecutors, the Naval Criminal Investigative Service and the Department of Energy was critical in thwarting the plot charged in the complaint and taking this first step in bringing the perpetrators to justice.”

Jonathan Toebbe is an employee of the Department of the Navy who served as a nuclear engineer and was assigned to the Naval Nuclear Propulsion Program, also known as Naval Reactors. He held an active national security clearance through the U.S. Department of Defense, giving him access to Restricted Data.

Toebbe worked with and had access to information concerning naval nuclear propulsion including information related to military sensitive design elements, operating parameters and performance characteristics of the reactors for nuclear powered warships.

The complaint affidavit alleges that on April 1, 2020, Jonathan Toebbe sent a package to a foreign government, listing a return address in Pittsburgh, Pennsylvania, containing a sample of Restricted Data and instructions for establishing a covert relationship to purchase additional Restricted Data. The affidavit also alleges that, thereafter, Toebbe began corresponding via encrypted email with an individual whom he believed to be a representative of the foreign government. The individual was really an undercover FBI agent. Jonathan Toebbe continued this correspondence for several months, which led to an agreement to sell Restricted Data in exchange for thousands of dollars in cryptocurrency.

On June 8, 2021, the undercover agent sent $10,000 in cryptocurrency to Jonathan Toebbe as “good faith” payment. Shortly afterwards, on June 26, Jonathan and Diana Toebbe traveled to a location in West Virginia. There, with Diana Toebbe acting as a lookout, Jonathan Toebbe placed an SD card concealed within half a peanut butter sandwich at a pre-arranged “dead drop” location. After retrieving the SD card, the undercover agent sent Jonathan Toebbe a $20,000 cryptocurrency payment. In return, Jonathan Toebbe emailed the undercover agent a decryption key for the SD Card. A review of the SD card revealed that it contained Restricted Data related to submarine nuclear reactors. On Aug. 28, Jonathan Toebbe made another “dead drop” of an SD card in eastern Virginia, this time concealing the card in a chewing gum package. After making a payment to Toebbe of $70,000 in cryptocurrency, the FBI received a decryption key for the card. It, too, contained Restricted Data related to submarine nuclear reactors. The FBI arrested Jonathan and Diana Toebbe on Oct. 9, after he placed yet another SD card at a pre-arranged “dead drop” at a second location in West Virginia.

Trial Attorneys Matthew J. McKenzie and S. Derek Shugert of the National Security Division’s Counterintelligence and Export Control Section, Assistant U.S. Attorneys Jarod J. Douglas and Lara Omps-Botteicher of the Northern District of West Virginia, and Special Assistant U.S. Attorney Jessica Lieber Smolar for the Western District of Pennsylvania are prosecuting the case on behalf of the government. The FBI and the NCIS are investigating the case.
A complaint is merely an accusation. A defendant is presumed innocent unless and until proven guilty.
Download Toebbe Complaint
Counterintelligence and Export Control
National Security
Federal Bureau of Investigation (FBI)
National Security Division (NSD)
USAO – West Virginia, Northern
Press Release Number: 
Updated October 10, 2021

https://www.justice. gov/opa/pr/maryland-nuclear-engineer-and-spouse-arrested-espionage-related-charges

This says that he’s a registered Dem but the site seems frequently wrong about things: