Amid the current security situation, noted posek Rav Ofir Malka clarified that carrying a phone on Shabbos is generally not permitted, even for the purpose of receiving Home Front Command alerts. The question arose in connection with people walking to a Shabbos meal in another location or heading to shul and wanting advance warning of incoming rocket sirens.

During the Halacha Lemaaseh radio program, a caller asked Rabbi Malka whether it would be permissible to carry a phone on the upcoming Shabbos while walking to a Shabbos meal elsewhere or going to daven, in order to receive alerts from the Home Front Command.

Rabbi Malka explained that in most situations there is no need for such a measure. When a person is in shul or outside on the street, the siren itself can usually be heard. The main concern arises only if someone is inside a closed building where the siren cannot be heard clearly. In most cases, however, sirens are audible in homes and shuls, and even if an individual does not hear it personally, others nearby will. As a result, there is typically sufficient time to reach a protected area.

He noted that the phone alert usually serves only as an early warning that comes a few minutes before the siren. Someone walking to shul generally does not need the alert because protected spaces are typically available nearby.

Rabbi Malka added that in more extreme cases, where a person genuinely needs the early alert because otherwise he would not be able to reach a protected area in time, there may be limited room for leniency. In such a situation, the phone may be placed in a jacket or pants pocket before Shabbos begins so that the person can receive the alert.

The caller suggested that having the phone would allow him more time to prepare. Rabbi Malka responded that one should simply act quickly rather than rely on the device. He emphasized that not everything becomes permissible due to the situation, and only actions that are truly necessary may be allowed.

“If because of this you will be able to reach the protected area, and without it you would not, then it is necessary,” the rabbi explained. “But if it is only so that you will hurry, then you should hurry from the outset.”