“Security dome” in the Sistine Chapel for the election of the Pope: Anti-drone technology, signal interference and vow of silence

The Capella Sistina is currently undergoing a transformation into one of the most secure locations globally, as Vatican technicians implement advanced security systems in preparation for the conclave starting Wednesday (7/5). During this event, 133 cardinals under the age of 80 will be tasked with electing the next Pope.

To maintain the utmost secrecy during the conclave, the Vatican has adopted a combination of cutting-edge technology and stringent physical security measures.

Electronic Shielding and Confidentiality

According to Reuters, the protective measures include specialized window films to block drone recording and mobile phone signal jamming systems, which are prohibited during the conclave.

In 2013, it was reported that a “Faraday cage,” a metallic structure designed to block electromagnetic waves, was employed to thwart surveillance efforts. Nevertheless, it remains uncertain whether this will interfere with cell phone signals outside Vatican boundaries.

Voting Process and Smoke Signals

The conclave may conduct up to four votes daily. The votes will be incinerated in a distinctive chimney recently installed on the roof of the Capella Sistina: black smoke signifies a failed election, while white smoke indicates the election of a new Pontiff.

The cardinals will be accommodated in the Santa Marta guesthouse, which has been evacuated for thorough security inspections in recent days. The primary entrance has been secured, and participants are instructed to use a side entrance. Reports indicate that Wi-Fi strength was significantly reduced on Monday (5/5), while improved drone detection measures have been implemented in collaboration with Italian authorities.

Cardinals will be escorted by Vatican police and the Swiss Guard, either by bus or, for the more adventurous, by walking through the gardens of St. Peter’s.

A Protective Barrier at All Times

A source familiar with the proceedings stated, “there will be a protective barrier surrounding the cardinals at all times.” Even if they wish to stroll or smoke in the garden, no one will be permitted close access.

Support staff, including priests, cooks, drivers, and cleaners, have all taken an oath of “absolute and lifelong confidentiality.” Breaching this oath results in automatic excommunication from the Church.