{"id":2623,"date":"2026-02-14T12:28:39","date_gmt":"2026-02-14T12:28:39","guid":{"rendered":"https:\/\/help.markto.ch\/?post_type=manual_kb&#038;p=2623"},"modified":"2026-02-14T12:28:39","modified_gmt":"2026-02-14T12:28:39","slug":"best-practices-for-sharing-phone-numbers-safely","status":"publish","type":"manual_kb","link":"https:\/\/help.markto.ch\/de\/knowledgebase\/best-practices-for-sharing-phone-numbers-safely\/","title":{"rendered":"Bew\u00e4hrte Vorgehensweisen f\u00fcr die sichere Weitergabe von Telefonnummern"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>Best Practices for Sharing Phone Numbers Safely on markto.ch<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sharing your phone number is often necessary for quick local deals on markto.ch (coordinating pickups, quick questions, negotiations), but it\u2019s smart to minimize risks like spam calls, unwanted contact, or privacy leaks. Here are the proven, practical best practices that experienced Swiss classifieds users follow.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Hide Your Number in the Ad by Default<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>During ad creation or editing, <strong>uncheck<\/strong> or leave blank the \u201cDisplay phone number\u201d option.<\/li>\n\n\n\n<li>Instead, add a <strong>WhatsApp link<\/strong> (e.g., wa.me\/yournumber) or just write \u201cContact via WhatsApp preferred\u201d.<\/li>\n\n\n\n<li>Why it\u2019s safer: Buyers message first \u2192 you see if they seem legit before sharing anything. Reduces random cold calls and spam bots scraping public numbers.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Use WhatsApp as Your Main Channel (Most Recommended)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>WhatsApp is the #1 way Swiss people communicate on markto.ch \u2014 fast, visual (photos), and location-sharing friendly.<\/li>\n\n\n\n<li>Safety advantages:<\/li>\n\n\n\n<li>You can set WhatsApp privacy to \u201cMy Contacts\u201d \u2192 only people you\u2019ve messaged or saved can call you.<\/li>\n\n\n\n<li>Block\/report is instant and effective.<\/li>\n\n\n\n<li>You control when to switch to voice calls.<\/li>\n\n\n\n<li>Pro move: Create a <strong>WhatsApp Business account<\/strong> with a separate number just for buying\/selling (free, easy to set up, looks professional).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. Use a Secondary \/ Burner Number for Classifieds<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Get a cheap prepaid SIM (e.g., from Aldi, Lidl, Coop Mobile, Salt, Yallo \u2014 often CHF 10\u201320 starter packs).<\/li>\n\n\n\n<li>Or use a virtual number app\/service (check Swiss availability: some use Google Voice via VPN, TextNow, or local providers like Twilio if you\u2019re techy).<\/li>\n\n\n\n<li>List only this number in ads or share it only after initial contact.<\/li>\n\n\n\n<li>After a few months or if spam starts \u2192 discard\/replace it. Zero impact on your main number.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. Share Your Number Only After Vetting the Buyer<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Good sequence many use:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Buyer sends first message (via platform form, WhatsApp link, or email).<\/li>\n\n\n\n<li>You reply and ask basic questions (\u201cWhere are you located?\u201d, \u201cWhen can you pick up?\u201d, \u201cCash or TWINT?\u201d).<\/li>\n\n\n\n<li>If they seem normal and serious \u2192 share your number (or switch fully to WhatsApp).<\/li>\n\n\n\n<li>Never give your number in the first reply unless the buyer already provided theirs and seems trustworthy.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">5. Avoid These Common Mistakes<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Don\u2019t put your phone number in the <strong>ad title or description<\/strong> text \u2014 bots scrape it easily.<\/li>\n\n\n\n<li>Don\u2019t share your number publicly in replies visible to everyone (some platforms show public comments).<\/li>\n\n\n\n<li>Don\u2019t give your number before arranging a <strong>public meeting spot<\/strong> (e.g., Migros parking, train station).<\/li>\n\n\n\n<li>Don\u2019t respond to suspicious requests like \u201cSend number so I can pay via TWINT first\u201d without viewing the item.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">6. Quick Safety Checklist Before Sharing<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Is the buyer local (same city\/region mentioned)?<\/li>\n\n\n\n<li>Have they asked normal questions (condition, availability, pickup)?<\/li>\n\n\n\n<li>Have they agreed to meet in a public place?<\/li>\n\n\n\n<li>Do they seem pushy or sketchy (e.g., \u201cI\u2019ll pay extra if you ship\u201d, \u201cSend money first\u201d)?<\/li>\n\n\n\n<li>If any red flag \u2192 don\u2019t share number; move on to next buyer.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">7. What to Do If You Get Spam \/ Harassment After Sharing<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Block the number immediately on your phone.<\/li>\n\n\n\n<li>On WhatsApp: Block + Report.<\/li>\n\n\n\n<li>If serious (threats, repeated unwanted contact): Save screenshots \u2192 report to markto.ch support (\u201cKontaktieren Sie uns\u201d in footer) and\/or local police if needed.<\/li>\n\n\n\n<li>Change your number privacy settings or get a new SIM if it becomes a big problem.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Summary \u2013 Safest Order of Contact Preference<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Platform message form (most private, no number shared yet)<\/li>\n\n\n\n<li>WhatsApp link \/ chat (masked initially, easy to block)<\/li>\n\n\n\n<li>Secondary phone number (only after vetting)<\/li>\n\n\n\n<li>Main personal number (avoid if possible for classifieds)<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Follow these habits and you\u2019ll cut spam to almost zero while still closing deals fast. Most markto.ch trades happen smoothly with just WhatsApp text + public pickup \u2014 no need to expose your main number at all.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Stay safe out there \u2014 smart sharing = stress-free selling! \ud83d\udd10<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"template":"","format":"standard","manualknowledgebasecat":[96],"manual_kb_tag":[],"class_list":["post-2623","manual_kb","type-manual_kb","status-publish","format-standard","hentry","manualknowledgebasecat-phone-and-direct-contact"],"_links":{"self":[{"href":"https:\/\/help.markto.ch\/de\/wp-json\/wp\/v2\/manual_kb\/2623","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/help.markto.ch\/de\/wp-json\/wp\/v2\/manual_kb"}],"about":[{"href":"https:\/\/help.markto.ch\/de\/wp-json\/wp\/v2\/types\/manual_kb"}],"author":[{"embeddable":true,"href":"https:\/\/help.markto.ch\/de\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":1,"href":"https:\/\/help.markto.ch\/de\/wp-json\/wp\/v2\/manual_kb\/2623\/revisions"}],"predecessor-version":[{"id":2624,"href":"https:\/\/help.markto.ch\/de\/wp-json\/wp\/v2\/manual_kb\/2623\/revisions\/2624"}],"wp:attachment":[{"href":"https:\/\/help.markto.ch\/de\/wp-json\/wp\/v2\/media?parent=2623"}],"wp:term":[{"taxonomy":"manualknowledgebasecat","embeddable":true,"href":"https:\/\/help.markto.ch\/de\/wp-json\/wp\/v2\/manualknowledgebasecat?post=2623"},{"taxonomy":"manual_kb_tag","embeddable":true,"href":"https:\/\/help.markto.ch\/de\/wp-json\/wp\/v2\/manual_kb_tag?post=2623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}