Halachaהלכה

Cybersecurity Defense and Shabbat Observance

These sources establish that preserving human life overrides Shabbat restrictions entirely, and explore how this principle applies to cyber-defense operations. The sources ground the obligation to protect others from digital harm in foundational Torah law, Talmudic principle, and rabbinic codification.

דְחוּיָה הִיא שַׁבָּת אֵצֶל סַכָּנַת נְפָשׁוֹת

14 sources · verified

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Source 1 · Tanach
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Leviticus — Lo Ta'amod Al Dam Re'echa

Leviticus 19:16

The Torah commands 'Do not stand idly by the blood of your neighbor,' a verse interpreted by the Talmud and codifiers as an obligation to actively intervene to save another's life — a direct mandate for cyber-security professionals whose inaction could endanger others on Shabbat.

לֹא־תֵלֵ֤ךְ רָכִיל֙ בְּעַמֶּ֔יךָ לֹ֥א תַעֲמֹ֖ד עַל־דַּ֣ם רֵעֶ֑ךָ אֲנִ֖י יְהֹוָֽה׃

Do not deal basely with members of your people. Do not profit by the blood of your fellow: I am GOD.

Source 2 · Tanach
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Deuteronomy — V'nishmartem Me'od L'nafshoteichem

Deuteronomy 4:15

The Torah commands 'You shall guard yourselves very carefully,' understood by the Rambam and later authorities as a biblical obligation of personal safety and self-preservation. Modern poskim extend this to protecting digital assets and personal data when breaches pose real-world danger.

וְנִשְׁמַרְתֶּ֥ם מְאֹ֖ד לְנַפְשֹׁתֵיכֶ֑ם כִּ֣י לֹ֤א רְאִיתֶם֙ כׇּל־תְּמוּנָ֔ה בְּי֗וֹם דִּבֶּ֨ר יְהֹוָ֧ה אֲלֵיכֶ֛ם בְּחֹרֵ֖ב מִתּ֥וֹךְ הָאֵֽשׁ׃

For your own sake, therefore, be most careful—since you saw no shape when GOD spoke to you at Horeb out of the fire—

Source 3 · Chazal
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Talmud Yoma — Chai Bahem

Yoma 85b

The Talmud derives from the verse 'V'chai bahem' (and you shall live by them) that the Torah's commandments are meant to bring life, not death — providing the hermeneutic basis that saving life supersedes Shabbat, applicable to cyber-security emergencies.

רַבִּי יוֹסֵי בְּרַבִּי יְהוּדָה אוֹמֵר: ״אֶת שַׁבְּתוֹתַי תִּשְׁמוֹרוּ״, יָכוֹל לַכֹּל — תַּלְמוּד לוֹמַר: ״אַךְ״ חָלַק. רַבִּי יוֹנָתָן בֶּן יוֹסֵף אוֹמֵר: ״כִּי קוֹדֶשׁ הִיא לָכֶם״, הִיא מְסוּרָה בְּיֶדְכֶם וְלֹא אַתֶּם מְסוּרִים בְּיָדָהּ. רַבִּי שִׁמְעוֹן בֶּן מְנַסְיָא אוֹמֵר: ״וְשָׁמְרוּ בְנֵי יִשְׂרָאֵל אֶת הַשַּׁבָּת״, אָמְרָה תּוֹרָה: חַלֵּל עָלָיו שַׁבָּת אַחַת כְּדֵי שֶׁיִּשְׁמוֹר שַׁבָּתוֹת הַרְבֵּה. אָמַר רַב יְהוּדָה אָמַר שְׁמוּאֵל: אִי הֲוַאי הָתָם, הֲוָה אָמֵינָא דִּידִי עֲדִיפָא מִדִּידְהוּ: ״וְחַי בָּהֶם״ — וְלֹא שֶׁיָּמוּת בָּהֶם.

Other tanna’im debated this same issue. Rabbi Yosei, son of Rabbi Yehuda, says that it is stated: “But keep my Shabbatot” (Exodus 31:13). One might have thought that this applies to everyone in all circumstances; therefore, the verse states “but,” a term that restricts and qualifies. It implies that there are circumstances where one must keep Shabbat and circumstances where one must desecrate it, i.e., to save a life. Rabbi Yonatan ben Yosef says that it is stated: “For it is sacred to you” (Exodus 31:14). This implies that Shabbat is given into your hands, and you are not given to it to die on account of Shabbat. Rabbi Shimon ben Menasya said: It is stated: “And the children of Israel shall keep Shabbat, to observe Shabbat” (Exodus 31:16). The Torah said: Desecrate one Shabbat on his behalf so he will observe many Shabbatot. Rav Yehuda said that Shmuel said: If I would have been there among those Sages who debated this question, I would have said that my proof is preferable to theirs, as it states: “You shall keep My statutes and My ordinances, which a person shall do and live by them” (Leviticus 18:5), and not that he should die by them. In all circumstances, one must take care not to die as a result of fulfilling the mitzvot.

Source 4 · Chazal
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Talmud Sanhedrin — Yehareg V'al Ya'avor

Sanhedrin 74a

The Talmud establishes the three cardinal sins for which one must die rather than transgress, but explicitly excludes Shabbat from this category, affirming that nearly any prohibition may be set aside to preserve life — the bedrock principle for emergency cyber-response on Shabbat.

אֲבָל הָרוֹדֵף אַחַר בְּהֵמָה. תַּנְיָא, רַבִּי שִׁמְעוֹן בֶּן יוֹחַי אוֹמֵר: הָעוֹבֵד עֲבוֹדָה זָרָה נִיתָּן לְהַצִּילוֹ בְּנַפְשׁוֹ, מִקַּל וָחוֹמֶר. וּמָה פְּגַם הֶדְיוֹט נִיתָּן לְהַצִּילוֹ בְּנַפְשׁוֹ, פְּגַם גָּבוֹהַּ לֹא כׇּל שֶׁכֵּן? וְכִי עוֹנְשִׁין מִן הַדִּין?! קָא סָבַר: עוֹנְשִׁין מִן הַדִּין. תַּנְיָא, רַבִּי אֶלְעָזָר בְּרַבִּי שִׁמְעוֹן אוֹמֵר: הַמְחַלֵּל אֶת הַשַּׁבָּת נִיתָּן לְהַצִּילוֹ בְּנַפְשׁוֹ. סָבַר לַהּ כַּאֲבוּהּ, דְּאָמַר: עוֹנְשִׁין מִן הַדִּין. וְאָתְיָא שַׁבָּת בְּ״חִילּוּל״ ״חִילּוּל״ מֵעֲבוֹדָה זָרָה. אָמַר רַבִּי יוֹחָנָן מִשּׁוּם רַבִּי שִׁמְעוֹן בֶּן יְהוֹצָדָק: נִימְנוּ וְגָמְרוּ בַּעֲלִיַּת בֵּית נַתְּזָה בְּלוֹד, כׇּל עֲבֵירוֹת שֶׁבַּתּוֹרָה אִם אוֹמְרִין לָאָדָם ״עֲבוֹר וְאַל תֵּהָרֵג״ – יַעֲבוֹר וְאַל יֵהָרֵג, חוּץ מֵעֲבוֹדָה זָרָה וְגִילּוּי עֲרָיוֹת וּשְׁפִיכוּת דָּמִים.

§ The mishna teaches: But with regard to one who pursues an animal to sodomize it, or one who seeks to desecrate Shabbat, or one who is going to engage in idol worship, they are not saved at the cost of their lives. It is taught in a baraita: Rabbi Shimon ben Yoḥai says: One who seeks to worship idols may be saved from transgressing at the cost of his life. This is derived through an a fortiori inference: If to avoid the degradation of an ordinary person, such as in the case of a rapist who degrades his victim, he can be saved even at the cost of his life, all the more so is it not clear that one may kill the transgressor to avoid the degrading of the honor of God through the worship of idols? The Gemara asks: But does the court administer punishment based on an a fortiori inference? The Gemara answers: Rabbi Shimon ben Yoḥai maintains that the court administers punishment based on an a fortiori inference. It is taught in a baraita: Rabbi Elazar, son of Rabbi Shimon, says: One who seeks to desecrate Shabbat may be saved from transgressing even at the cost of his life. The Gemara explains that Rabbi Elazar holds in accordance with the opinion of his father, Rabbi Shimon, who says: The court administers punishment based on an a fortiori inference, and the halakha with regard to one who desecrates Shabbat is derived from the halakha with regard to idol worship by way of a verbal analogy between the word “desecration” mentioned in the context of Shabbat and the word “desecration” mentioned in the context of idol worship. § The Gemara now considers which prohibitions are permitted in times of mortal danger. Rabbi Yoḥanan says in the name of Rabbi Shimon ben Yehotzadak: The Sages who discussed this issue counted the votes of those assembled and concluded in the upper story of the house of Nitza in the city of Lod: With regard to all other transgressions in the Torah, if a person is told: Transgress this prohibition and you will not be killed, he may transgress that prohibition and not be killed, because the preserving of his own life overrides all of the Torah’s prohibitions. This is the halakha concerning all prohibitions except for those of idol worship, forbidden sexual relations, and bloodshed. Concerning those prohibitions, one must allow himself to be killed rather than transgress them.

Source 5 · Chazal
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Mishnah — Wayfarer's Prayer for Safety

Mishnah Berakhot 4:4

The Mishnah records a short prayer recited when traveling through dangerous terrain, asking God for protection from harm. This source reflects the Talmudic consciousness that danger is real and that one should both pray and take practical steps to guard against it.

רַבִּי יְהוֹשֻׁעַ אוֹמֵר, הַמְהַלֵּךְ בִּמְקוֹם סַכָּנָה, מִתְפַּלֵּל תְּפִלָּה קְצָרָה. אוֹמֵר, הוֹשַׁע הַשֵּׁם אֶת עַמְּךָ אֶת שְׁאֵרִית יִשְׂרָאֵל, בְּכָל פָּרָשַׁת הָעִבּוּר יִהְיוּ צָרְכֵיהֶם לְפָנֶיךָ. בָּרוּךְ אַתָּה ה' שׁוֹמֵעַ תְּפִלָּה:

Rabbi Yehoshua says: One who cannot recite a complete prayer because he is walking in a place of danger, recites a brief prayer and says: Redeem, Lord, Your people, the remnant of Israel, at every transition [parashat ha’ibur], the meaning of which will be discussed in the Gemara. May their needs be before You. Blessed are You, Lord, Who listens to prayer.

Source 6 · Chazal
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Pirkei Avot — Torah Together with Worldly Occupation

Pirkei Avot 2:2

Rabban Gamliel teaches that Torah study is beautiful when combined with a worldly occupation (derech eretz), and that labor without Torah leads to sin. This Mishnaic principle has been used to frame the integration of professional duties — including technology and security roles — with religious observance.

וְכָל תּוֹרָה שֶׁאֵין עִמָּהּ מְלָאכָה, סוֹפָהּ בְּטֵלָה וְגוֹרֶרֶת עָוֹן.

Rabban Gamaliel the son of Rabbi Judah Hanasi said: excellent is the study of the Torah when combined with a worldly occupation, for toil in them both keeps sin out of one’s mind; But [study of the] Torah which is not combined with a worldly occupation, in the end comes to be neglected and becomes the cause of sin.

Source 7 · Rishonim
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Rambam — Obligation to Prevent Danger

Mishneh Torah, Murderer and the Preservation of Life 1:14

The Rambam codifies the positive obligation derived from 'Lo ta'amod al dam re'echa' to take all necessary steps to save a fellow Jew's life, including physical effort and expense. This creates a framework for understanding cyber-defense as a life-saving obligation.

אוֹ לִסְטִים בָּאִים עָלָיו. אוֹ חַיָּה רָעָה בָּאָה עָלָיו. וְיָכוֹל לְהַצִּילוֹ הוּא בְּעַצְמוֹ. אוֹ שֶׁיִּשְׂכֹּר אֲחֵרִים לְהַצִּילוֹ וְלֹא הִצִּיל. אוֹ שֶׁשָּׁמַע עוֹבְדֵי כּוֹכָבִים אוֹ מוֹסְרִים מְחַשְּׁבִים עָלָיו רָעָה אוֹ טוֹמְנִין לוֹ פַּח וְלֹא גִּלָּה אֹזֶן חֲבֵרוֹ וְהוֹדִיעוֹ. אוֹ שֶׁיָּדַע בְּעַכּוּ"ם אוֹ בְּאוֹנֵס שֶׁהוּא בָּא עַל חֲבֵרוֹ וְיָכוֹל לְפַיְּסוֹ בִּגְלַל חֲבֵרוֹ לְהָסִיר מַה שֶּׁבְּלִבּוֹ וְלֹא פִּיְּסוֹ. וְכָל כַּיּוֹצֵא בִּדְבָרִים אֵלּוּ. הָעוֹשֶׂה אוֹתָם עוֹבֵר עַל לֹא תַעֲמֹד עַל דַּם רֵעֶךָ:

Whenever a person can save another person's life, but he fails to do so, he transgresses a negative commandment, as Leviticus 19:16 states: "Do not stand idly by while your brother's blood is at stake." Similarly, this commandment applies when a person sees a colleague drowning at sea or being attacked by robbers or a wild animal, and he can save him himself or can hire others to save him. Similarly, it applies when he hears gentiles or mosrim conspiring to harm a colleague or planning a snare for him, and he does not inform him and notify him of the danger. And it applies when a person knows of a gentile or a man of force who has a complaint against a colleague, and he can appease the aggressor on behalf of his colleague, but he fails to do so. And similarly, in all analogous instances, a person who fails to act transgresses the commandment: "Do not stand idly by while your brother's blood is at stake."

Source 8 · Rishonim
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Rambam — Hilchot Shabbat, Pikuach Nefesh

Mishneh Torah, Sabbath 2:1-3

The Rambam rules that preserving human life overrides Shabbat entirely, and that one who hesitates to act quickly for pikuach nefesh commits a sin. This principle is foundational for any discussion of emergency cyber-defense operations on Shabbat.

דְחוּיָה הִיא שַׁבָּת אֵצֶל סַכָּנַת נְפָשׁוֹת כִּשְׁאָר כָּל הַמִּצְוֹת. לְפִיכָךְ חוֹלֶה שֶׁיֵּשׁ בּוֹ סַכָּנָה עוֹשִׂין לוֹ כָּל צְרָכָיו בְּשַׁבָּת עַל פִּי רוֹפֵא אֻמָּן שֶׁל אוֹתוֹ מָקוֹם. סָפֵק שֶׁהוּא צָרִיךְ לְחַלֵּל עָלָיו אֶת הַשַּׁבָּת סָפֵק שֶׁאֵינוֹ צָרִיךְ. וְכֵן אִם אָמַר רוֹפֵא לְחַלֵּל עָלָיו אֶת הַשַּׁבָּת וְרוֹפֵא אַחֵר אוֹמֵר אֵינוֹ צָרִיךְ מְחַלְּלִין עָלָיו אֶת הַשַּׁבָּת שֶׁסְּפֵק נְפָשׁוֹת דּוֹחֶה אֶת הַשַּׁבָּת: אֲמָדוּהוּ בְּיוֹם הַשַּׁבָּת שֶׁהוּא צָרִיךְ לְכָךְ וְכָךְ לִשְׁמוֹנָה יָמִים אֵין אוֹמְרִים נַמְתִּין עַד הָעֶרֶב כְּדֵי שֶׁלֹּא לְחַלֵּל עָלָיו שְׁתֵּי שַׁבָּתוֹת אֶלָּא מַתְחִילִין מֵהַיּוֹם שֶׁהוּא שַׁבָּת וּמְחַלְּלִין עָלָיו אֲפִלּוּ מֵאָה שַׁבָּתוֹת כָּל זְמַן שֶׁהוּא צָרִיךְ וְיֵשׁ בּוֹ סַכָּנָה אוֹ סְפֵק סַכָּנָה מְחַלְּלִין. וּמַדְלִיקִין לוֹ אֶת הַנֵּר וּמְכַבִּין מִלְּפָנָיו אֶת הַנֵּר וְשׁוֹחֲטִין לוֹ וְאוֹפִין וּמְבַשְּׁלִין וּמְחִמִּין לוֹ חַמִּין בֵּין לְהַשְׁקוֹתוֹ בֵּין לִרְחִיצַת גּוּפוֹ. כְּלָלוֹ שֶׁל דָּבָר שַׁבָּת לְגַבֵּי חוֹלֶה שֶׁיֵּשׁ בּוֹ סַכָּנָה הֲרֵי הוּא כְּחל לְכָל הַדְּבָרִים שֶׁהוּא צָרִיךְ לָהֶן: כְּשֶׁעוֹשִׂים דְּבָרִים הָאֵלּוּ אֵין עוֹשִׂין אוֹתָן לֹא עַל יְדֵי נָכְרִים וְלֹא עַל יְדֵי קְטַנִּים וְלֹא עַל יְדֵי עֲבָדִים וְלֹא עַל יְדֵי נָשִׁים כְּדֵי שֶׁלֹּא תְּהֵא שַׁבָּת קַלָּה בְּעֵינֵיהֶם. אֶלָּא עַל יְדֵי גְּדוֹלֵי יִשְׂרָאֵל וְחַכְמֵיהֶם. וְאָסוּר לְהִתְמַהְמֵהַּ בְּחִלּוּל שַׁבָּת לְחוֹלֶה שֶׁיֵּשׁ בּוֹ סַכָּנָה שֶׁנֶּאֱמַר (ויקרא יח ה) "אֲשֶׁר יַעֲשֶׂה אוֹתָם הָאָדָם וָחַי בָּהֶם" וְלֹא שֶׁיָּמוּת בָּהֶם. הָא לָמַדְתָּ שֶׁאֵין מִשְׁפְּטֵי הַתּוֹרָה נְקָמָה בָּעוֹלָם אֶלָּא רַחֲמִים וְחֶסֶד וְשָׁלוֹם בָּעוֹלָם. וְאִלּוּ הָאֶפִּיקוֹרוֹסִים שֶׁאוֹמְרִים שֶׁזֶּה חִלּוּל שַׁבָּת וְאָסוּר עֲלֵיהֶן הַכָּתוּב אוֹמֵר (יחזקאל כ כה) "גַּם אֲנִי נָתַתִּי לָהֶם חֻקִּים לֹא טוֹבִים וּמִשְׁפָּטִים לֹא יִחְיוּ בָּהֶם":

The [laws of] the Sabbath are suspended in the face of a danger to life, as are [the obligations of] the other mitzvot. Therefore, we may perform - according to the directives of a professional physician of that locale - everything that is necessary for the benefit of a sick person whose life is in danger. When there is a doubt whether or not the Sabbath laws must be violated on a person's behalf, one should violate the Sabbath laws on his behalf, for the Sabbath laws are suspended even when there is merely a question of danger to a person's life. [The same principles apply] when one physician says the Sabbath laws should be violated on a person's behalf and another physician states that this is not necessary. [The following laws apply when physicians] determine on the Sabbath that a person needs [a treatment to be administered] for eight days. We do not say that we should wait until the evening so that it will not be necessary to violate two Sabbaths on his behalf. Instead, the treatment is begun immediately, on the Sabbath, and even one hundred Sabbaths may be violated on his behalf. As long as a person is dangerously [ill] - or even if there is a question whether or not he is dangerously [ill] - and requires treatment, [the Sabbath] should be violated [on his behalf]. A lamp may be lit on his behalf and extinguished on his behalf. [Animals] may be slaughtered on his behalf, [food] baked and cooked on his behalf, and water heated for him, whether to drink or to use for bathing. The general principle for a person who is dangerously ill is that the Sabbath should be considered as a weekday regarding all his needs. When such treatment is administered, it should not be administered by gentiles, by children, by servants, or by women, so that they will not view the Sabbath flippantly. Instead, the treatment should be administered by the leaders of Israel and the wise. It is forbidden to hesitate before transgressing the Sabbath [laws] on behalf of a person who is dangerously ill, as [reflected in the interpretation in the phrase of Leviticus 18:5,] "which a person shall perform to live through them," as "['to live through them'] and not to die through them." This teaches that the judgments of the Torah do not [bring] vengeance to the world, but rather bring mercy, kindness, and peace to the world. Concerning those non-believers who say that [administering such treatment] constitutes a violation of the Sabbath and is forbidden, one may apply the verse [Ezekiel 20:25]: "[As punishment,] I gave them harmful laws and judgments through which they cannot live."

Source 9 · Rishonim
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Rambam — Defensive War on Shabbat

Mishneh Torah, Kings and Wars 5:1

The Rambam rules that in a milchemet mitzvah (obligatory war), one may fight on Shabbat, and the community must go out to repel attackers. This is applied by modern poskim to state-level cyber warfare and active defensive operations conducted by Jewish professionals.

וְעֶזְרַת יִשְׂרָאֵל מִיַּד צָר שֶׁבָּא עֲלֵיהֶם.

The war against the seven nations who occupied Eretz Yisrael, the war against Amalek, and a war fought to assist Israel from an enemy which attacks them.

Source 10 · Acharonim
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Shulchan Arukh — Pikuach Nefesh on Shabbat

Shulchan Arukh, Orach Chayim 328:2

One must violate Shabbat to save a life (pikuach nefesh), and it is a mitzvah to do so quickly. This foundational ruling underlies the permissibility of activating cyber-security systems on Shabbat when lives or critical infrastructure are at risk.

מי שיש לו חולי של סכנה מצוה לחלל עליו את השבת והזריז הרי זה משובח והשואל הרי זה שופך דמים:

One who asks about this is a murderer.

Source 11 · Acharonim
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Tomer Devorah — Imitating God's Attributes

Tomer Devorah 1:1

Rav Moshe Cordovero opens with the obligation to emulate God's thirteen attributes of mercy, including protecting and sustaining those who depend on you. This provides a spiritual-ethical framework for the responsibility to safeguard community members from harm, including digital threats.

הָאָדָם רָאוּי שֶׁיִּתְדַּמֶּה לְקוֹנוֹ וְאָז יִהְיֶה בְּסוֹד הַצּוּרָה הָעֶלְיוֹנָה צֶלֶם וּדְמוּת, שֶׁאִלּוּ יְדֻמֶּה בְּגוּפוֹ וְלֹא בִּפְעֻלּוֹת הֲרֵי הוּא מַכְזִיב הַצּוּרָה וְיֹאמְרוּ עָלָיו צוּרָה נָאָה וּמַעֲשִׂים כְּעוּרִים. שֶׁהֲרֵי עִיקָר הַצֶּלֶם וְהַדְּמוּת הָעֶלְיוֹן הֵן פְּעֻלּוֹתָיו, וּמַה יוֹעִיל לוֹ הֱיוֹתוֹ כְּצוּרָה הָעֶלְיוֹנָה דְּמוּת תַּבְנִית אֵבָרָיו וּבַפְּעֻלּוֹת לֹא יִתְדַמֶּה לְקוֹנוֹ.

Chapter 1 - That it is fitting for a person to resemble his Creator: It is fitting for a person to resemble his Creator and then he will be [configured] in the secret of the Highest Form, [both] in image and likeness. As if he is alike in his body but not in his actions, he betrays the Form; and they will say about him, "A lovely form, but ugly deeds." As behold, the essence of the Highest Image and Likeness is His actions.

Source 12 · Acharonim
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Shulchan Arukh — Repelling a Border Attack on Shabbat

Shulchan Arukh, Orach Chayim 329:6-7

The Shulchan Arukh rules that even for a potential threat to border towns, one must violate Shabbat to defend against an enemy, even if only property (not life) may be at risk. This ruling has direct bearing on cyber-attacks targeting critical national or communal infrastructure.

עכו"ם שצרו על עיירות ישראל אם באו על עסק ממון אין מחללין עליהם את השבת באו על עסק נפשות ואפי' סתם יוצאים עליהם בכלי זיין ומחללים עליהם את השבת ובעיר הסמוכה לספר אפילו לא באו אלא על עסקי תבן וקש מחללין עליהם את השבת: הגה ואפילו לא באו עדיין אלא רוצים לבא [א"ז]: יש מי שאומר שבזמן הזה אפי' באו על עסקי ממון מחללין שאם לא יניחנו ישראל לשלול ולבוז ממונו יהרגנו והוי עסקי נפשות [ומ"מ הכל לפי הענין] (פסקי מהרי"א סי' ק"כ):

Regarding non-Jews who besiege Jewish cities: if they come for money, we do not desecrate the Shabbat [to protect ourselves], but if they came to kill or come with no presented reason, we go out with weapons and desecrate the Shabbat. In a city that is near the border, even if they just come for straw or hay, we desecrate the Shabbat. Rem"a: Even if they haven't come but they want to come (Or Zarua). There is one who says that in our times, even if they come for money, we desecrate the Shabbat, because if we do not allow them to plunder the money, they will kill, and so it becomes a case of saving life. (In any event, everything is according to the situation(Piskei Mahara'i Chapter 156).)

Source 13 · Acharonim
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Shulchan Arukh — Saving Property from Fire on Shabbat

Shulchan Arukh, Orach Chayim 334:26

The Shulchan Arukh rules that one may not violate Shabbat to save property alone, but the Rama notes leniencies when significant financial loss or community harm is at stake. This ruling forms part of the broader halakhic discussion on whether cyber-attacks on financial systems warrant Shabbat response.

הגה וכל הדינים הנזכרים בדיני הדליקה הני מילי בימיהם אבל בזמן הזה אותם השרויין בין עכו"ם והיא חשש סכנת נפשות כתבו הראשונים והאחרונים זכרונם לברכה שמותר לכבות דליקתם בשבת משום דיש בה סכנת נפשות והזריז הרי זה משובח ומ"מ הכל לפי הענין אם היו בטוחים בודאי שלא יהיה להם סכנה בדבר אסור לכבות אבל בחשש סכנת ספק מותר לכבות אפילו הדליקה בביתו של עכו"ם וכן נוהגין [תרומת הדשן סימן נ"ח והגהות אשירי פרק מי שהוציאוהו בשם א"ז] ודוקא לכבות הדליקה דהוי מלאכה שאינה צריכה לגופה ויש סכנה אם לא יכבה אבל אסור לחלל שבת כדי להציל [ממון] ואם עבר וחילל צריך להתענות ארבעים יום שני וחמישי ולא ישתה יין ולא יאכל בשר ויתן במקו' חטאת י"ח פשיטים צדקה ואם ירצה לפדות התענית יתן בעד כל יום י"ב פשיטים לצדקה [פסקי מהרא"י סי' ט' ועיין בטור יורה דעה מהלכות נדה סימן קפ"ה]:

If he wants to avoid the fast, he must give twelve pshitim to charity for each day (Piskei Mahara"i Chapter 60) and see the Tur Yoreh Deah from the Laws of Niddah Chapter 185.

Source 14 · Hasidic
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Noam Elimelekh — The Tzaddik's Responsibility to the Community

Noam Elimelekh, Sefer Bereshit, Vayera, Vayera

The Noam Elimelekh discusses the tzaddik's obligation to watch over the spiritual and physical welfare of the entire community, even at personal cost. This Chassidic teaching frames cyber-security responsibility as an extension of communal guardianship.

"וירא והנה שלשה אנשים נצבים עליו", רמז שראה אברהם שמוטל עליו לתקן ג' עולמות, דהיינו יראה אהבה ותפארת, כי הצדיק צריך לתקן את הששה קצוות שהם ששה ימי חול, והם ג' וג', דהיינו ג' לפני השבת וג' לאחר השבת, ולכן תפס הכתוב בלשונו רק "שלשה אנשים", והוא כולל יחד כל הששה קצוות, אותן שלפני השבת עם אותן שלאחר השבת. וזהו שאנו אומרים "ותן בלבנו לאהבה וליראה", הגם שבאמת צריך האדם להקדים היראה לאהבה, אך אנו מתפללים על היראה הבאה מתוך אהבה, דהיינו שלשה ימים שאחר השבת הם אהבה שהם שייכים לשבת העבר, וג' הימים שלפני השבת הם יראה שמתוכם באים אל אהבה שהוא השבת, ועל זה אנו מתפללים 'לאהבה וליראה' כסדר ימי החול שמתחילה אהבה והדר יראה, לתקן הששה קצוות.

And the text said: "why did he merit that Ad-nai appeared to him through his dealings with Torah? This was due to his great surrender, which is "he sits at the entrance of the tent", that even though he was a great tzadik he held himself in a great surrender, that he was still sitting at the entrance and at the beginning of holiness, since "tent" is a hint to holiness, "as the day warms" meaning