A retired Austrian army colonel was jailed for three years on Tuesday after being convicted of spying for Russia.
The 71-year-old who has not been named "betrayed state secrets at the expense of Austria for a foreign secret service," a Salzburg court ruled.
He also "deliberately disclosed a military secret," according to the verdict.
The court case began in March behind closed doors to avoid revealing classified military information.
He was charged with betraying state secrets over a period of more than 25 years, for which he received roughly 280,000 euros ($310,000).
His defense lawyer said his client had been paid 220,00 euros for information which was available from open sources.
Prosecutors said the information the defendant passed related primarily to Austria's weapons systems and the organization of its land and air combat forces.
They say he maintained contact with Russian intelligence into his retirement.
At the time of his arrest Austrian media described him as a mid-ranking officer who worked in the defense ministry's planning department.
A Message from The Moscow Times:
Dear readers,
We are facing unprecedented challenges. Russia's Prosecutor General's Office has designated The Moscow Times as an "undesirable" organization, criminalizing our work and putting our staff at risk of prosecution. This follows our earlier unjust labeling as a "foreign agent."
These actions are direct attempts to silence independent journalism in Russia. The authorities claim our work "discredits the decisions of the Russian leadership." We see things differently: we strive to provide accurate, unbiased reporting on Russia.
We, the journalists of The Moscow Times, refuse to be silenced. But to continue our work, we need your help.
Your support, no matter how small, makes a world of difference. If you can, please support us monthly starting from just $2. It's quick to set up, and every contribution makes a significant impact.
By supporting The Moscow Times, you're defending open, independent journalism in the face of repression. Thank you for standing with us.
Remind me later.