Postal Arbitrage(walzr.com)

515 points by The28thDuck 9 months ago | 260 comments

A web project listing Amazon Prime items cheaper than a $0.78 US stamp that ship free, suggesting sending them with gift notes instead of postcards.

Show HN: I made a tool to send a letter now people use it to just print(pieterpost.com)

18 points by bahrtw 1 year ago | 2 comments

E-COM: The $40M USPS project to send email on paper(buttondown.com)

97 points by rfarley04 1 year ago | 86 comments

Knuth Airgaps and Knuth Buffers(taylor.town)

136 points by schmudde 2 years ago | 45 comments

Stop Sloppypasta(stopsloppypasta.ai)

584 points by namnnumbr 7 months ago | 228 comments

A single-page site defining "sloppypasta", verbatim unread LLM output pasted at others, explaining why it is rude and proposing rules for sharing AI text.

Show HN: Text a photo to send as a postcard(postcardbot.com)

112 points by traviswingo 3 years ago | 86 comments

USPS shared customer postal addresses with Meta, LinkedIn and Snap(techcrunch.com)

379 points by leotravis10 2 years ago | 194 comments

TechCrunch investigation reporting that the US Postal Service shared customers' postal addresses with Meta, LinkedIn and Snap via tracking code, and later remediated it.

U.S. postal inspectors shut down website selling counterfeit postage labels(postalemployeenetwork.com)

272 points by ilamont 26 days ago | 161 comments

Postal Employee Network news article reporting that U.S. Postal Inspectors shut down a website selling millions of counterfeit postage labels.

USPS text scammers duped his wife, so he hacked their operation(blog.smithsecurity.biz)

372 points by wglb 2 years ago | 257 comments

Wired article about Grant Smith, who infiltrated the Smishing Triad USPS text scam operation after his wife was duped, and exposed it to US authorities.

Stop Microsoft users sending 'reactions' to email by adding a postfix header(neilzone.co.uk)

383 points by wasmitnetzen 2 years ago | 310 comments

A blog post describing how the author added a Postfix header to outgoing mail to try to stop Microsoft Outlook users from sending 'reaction' emails.

Thanks FedEx, this is why we keep getting phished(troyhunt.com)

1506 points by ahonhn 2 years ago | 493 comments

Troy Hunt blog post criticizing FedEx for sending a legitimate duty-payment SMS with a third-party link that looks indistinguishable from phishing.

Small programming tricks(will-keleher.com)

606 points by signa11 1 month ago | 266 comments

A blog post arguing that small nuggets of programming knowledge boost productivity, sharing examples like fzf-powered ctrl+r and python3 -m http.server.