Signal

EghtesadOnline: The recent prisoner swap between Iran and the United States could be seen as a "positive" signal, but is unlikely to lead to direct bilateral talks as Tehran-Washington political ties are "complicated" in nature, a political analyst says.

EghtesadOnline: The new government led by UK Prime Minister Boris Johnson expressed continued support for the Iran nuclear deal at an emergency meeting of international powers trying to save the 2015 accord.

EghtesadOnline: Dirty jokes and NSFW GIFs. Snaps of unsuspecting colleagues on the trading floor. Screenshots of confidential client positions. All that -- and, on occasion, even legally dubious information -- is increasingly being trafficked over the new private lines of Wall Street: encrypted messaging services like WhatsApp and Signal .