yan

@bcrypt74k followers

security engineering @brave / helped build Let's Encrypt, Privacy Badger, and HTTPS Everywhere @eff / physics alum @mit / rabbit enthusiast

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Across 83 organic posts

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Oct 17

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Posts 83 posts

#	Date	Post	↓ Outlier	Views	Likes	Reposts	Bookmarks
1	Apr 11, '24	in january 2023, i had a simple ultrasound done at SimonMed. they sent me 4 bills totaling $5137 for it. after a year of emails and phone calls, they finally admitted today that i	127×	4.3M	33k	3.1k	21k
2	May 9, '24	ROFL at andrew huberman saying that if you have a 20% chance of pregnancy in any given month, the chance of being pregnant after 6 months is 120%	60.4×	2M	5.3k	238	896
3	Dec 16, '18	omg	52.4×	0	37k	13k	571
4	Oct 18, '24	PSA i can spoof any email and it will pass all DKIM/SPF/etc. checks. here's an email i sent to myself pretending to be a famous MIT-affiliated podcaster - thanks gmail for auto-ins	41.3×	1.4M	12k	683	4.2k
5	Sep 14, '20	my friend sophie got fired from her job at Facebook and turned down a $64,000 severance package in order to leak this, so u better read it.	30.2×	0	16k	8.3k	1.7k
6	Nov 2, '24	reminder that the bcrypt hash function ignores input above a certain length! so if you do bcrypt(username \|\| password) for some reason, a sufficiently long username will make it ac	22.2×	748k	6.1k	988	2.1k
7	Aug 5, '23	i don’t even know where to begin	18.4×	620k	18k	724	320
8	Oct 29, '16	confirmed that Facebook lets me exclude black, asian, and hispanic people from seeing my ads. why can't i exclude white people?	12.8×	0	5.3k	4.6k	0
9	Aug 10, '17	8 rabbits, aka 1 rabbyte	10.7×	0	7.1k	2.9k	2
10	May 9, '24	in case youtube takes it down	⚡ 8.6×	8M	3.7k	194	1.7k
11	Apr 11, '24	2/ the first bill they sent was for $484.92, which i paid promptly. a few months later they sent a bill for $3378.69! i contacted my insurance and they sent me an updated EOB sayin	8.4×	283k	2.3k	33	80
12	Apr 11, '24	3/ i emailed simonmed and attached the EOB. they said they would look into it. shortly after i got a new bill for $140.53 in the mail which i paid. then i noticed the 484.92 amount	8.3×	280k	1.9k	26	40
13	Mar 29, '24	fyi homebrew had the backdoored version of xz utils; updating now will downgrade it	8.1×	274k	1.6k	401	268
14	Apr 11, '24	4/ a representative from Anthem replied saying that their previous reply was wrong; i only owed $140.53 total. so simonmed owed me a refund for the first bill ($484.92). i called s	8.1×	272k	1.9k	26	32
15	Apr 11, '24	5/ months passed with no refund. i asked Anthem what to do and they suggested Anthem, SimonMed, and I do a 3-way call. Anthem set up this call and again the SimonMed rep said they	7.4×	251k	1.9k	24	27
16	Oct 10, '19	so crazy that if u just touch a computer in the right ways u can make like 100 billion dollars	7.4×	0	6.6k	981	141
17	Apr 11, '24	6/ i called Anthem again to do a 3-way call with SimonMed to explain that i didn't owe them money, they owed me money. again nothing happened for months. in the meantime i started	7.0×	234k	2.7k	52	552
18	Apr 15, '22	could not for the life of me figure out how to buy a bus ticket in Milan. it was literally easier to get a shell 😆	6.9×	0	6.8k	597	151
19	Apr 11, '24	7/ the first step to suing in small claims in CA is to send a demand letter, so i used to do this for free. i both mailed and emailed it to simonmed. they replied promptly via emai	6.5×	218k	2.5k	67	992
20	Oct 13, '21	i…. just received a children’s book about a rabbit who travels back in time to medieval europe and gets everyone hyped about blockchain	6.4×	0	4.2k	1k	215
21	Apr 11, '24	8/ after a few back-and-forths with SimonMed, they said their internal investigation concluded that i wasn't owed anything. however they offered to send me a superbill explaining t	6.2×	207k	2.5k	37	50
22	Mar 11, '20	this is a udp joke so i don't care if u get it	6.1×	0	4.7k	1.2k	40
23	Apr 11, '24	tl;dr if u have insurance check that the amount ur billed lines up with what insurance says u owe before paying. if u overpaid u can try a demand letter to get a refund. ask the pr	6.0×	202k	4.4k	179	831
24	Apr 11, '24	9/ their own PDF contained the last bit of proof i needed to get the refund! i simply replied saying so and they immediately escalated it. a few days later they asked me where to s	5.9×	199k	2.3k	27	46
25	Oct 18, '24	no idea how many other legacy SMTP setups have the same issue but it's easy to detect in this case; just inspect the email headers and check if the "authenticated as" user is the s	4.1×	139k	1.2k	29	268
26	Jan 27, '21	the person who used gamestop as a bank in 2014 was way ahead of their time	4.1×	0	3.6k	448	189
27	Oct 18, '24	i discovered this because i received a VERY convincing phishing email sent from "me". it turns out the attacker compromised another acct and was using it to send email as arbitrary	3.8×	128k	1.4k	16	58
28	Jul 28, '16	The military is threatening to put @xychelsea in solitary for the next 3 decades because she attempted suicide.	3.6×	0	877	1.5k	0
29	Dec 31, '16	my left pinky is ripped af 💪	3.2×	0	2.3k	754	1
30	Aug 27, '16	last night someone explained meditation to me as cache invalidation for your mind	3.0×	0	1.8k	911	3
31	Sep 26, '23	cannot praise tim cook and the team at apple highly enough for making my rabbit’s ear go over the clock on the latest update	2.9×	96k	1.1k	38	24
32	Aug 17, '20	pg&e also: * caused the deadliest fires in CA history bc they chose to spend money on lobbying & paying investors rather than maintaining their infrastructure * declared ba	2.8×	0	1.6k	921	26
33	Feb 1, '18	amazingly i work on a security team where nobody wants to go drinking, so instead we went out for an elaborate tea service after work lol	2.8×	0	2.7k	213	0
34	Mar 9, '18	unpopular opinion of the day: i wish infosec (and tech industry in general) put less emphasis on teaching people to be public speakers and more emphasis on teaching them to be good	2.7×	0	2.4k	393	9
35	Apr 14, '20	want to exercise at home but too lazy to figure out a routine? i have solved ur problem by building a web app that randomly generates workouts w/ random pictures scraped from Googl	2.7×	0	1.7k	434	230
36	Oct 4, '21	i hereby declare today to be BGP Awareness Day	2.5×	0	2.1k	392	25
37	Apr 25, '19	this car is ok	2.4×	0	2.2k	342	17
38	Jun 4, '17	i remember the days when people still programmed in low-level languages such as untranspiled javascript	2.4×	0	1.7k	602	0
39	Aug 12, '17	View post on X	2.3×	0	1.4k	691	0
40	Jul 30, '17	a group of furries in costume is being accosted by casino staff for foiling the facial recognition system. #PeakDefcon	2.2×	0	1.7k	474	0
41	Dec 29, '15	am i in a nightmare rn	2.2×	0	1.4k	642	0
42	Dec 21, '17	i've written links in markdown 100+ times and i still have to look up whether the brackets or the parentheses come first. every single time.	2.2×	0	1.9k	312	0
43	Nov 4, '22	just made a "decentralized" "alternative" to twitter; everyone should go "join" it to make an account: fork to tweet: git commit --allow-empty to follow someone: git remote add &lt	2.1×	0	1.4k	326	161
44	Oct 21, '16	global DNS ddos is the grownup version of a snow day. ☃️	2.1×	0	1.3k	620	0
45	Oct 23, '16	hypothesis: most people's feelings about most things are just cached responses	2.1×	0	1.4k	470	13
46	Jun 19, '19	if you exclude english and spanish, the most commonly spoken language in each US state is pretty surprising.	2.1×	0	1.2k	512	53
47	Feb 9, '17	relationship goals	2.0×	0	1.4k	475	0
48	Feb 15, '18	me every night	2.0×	0	1.7k	378	2
49	Nov 19, '21	buried in this announcement is the absolutely crazy revelation that until 2 weeks ago, anyone could have published an update to any npm package. (HT @feross)	2.0×	0	1.2k	411	60
50	Sep 1, '17	if your site embeds tweets, add <meta name="twitter:dnt" content="on"> so that Twitter doesn't track your visitors	2.0×	0	1.1k	622	2
51	Aug 29, '17	check out my sweet burner laptop	1.9×	0	1.7k	254	3
52	Aug 14, '18	i fixed the macbook keyboard	1.9×	0	1.8k	210	3
53	Mar 23, '18	it's great making a product for linux users because they have such a low baseline expectation for things working out-of-the-box and will go to great lengths to help you debug	1.9×	0	1.7k	268	0
54	Nov 13, '19	when i joined @brave in 2015, we estimated that the Brave 1.0 release was about 6 months away. today we finally did it!!! so proud of the team (which is now about 14x larger) :D	1.8×	0	1.7k	179	20
55	Nov 14, '17	if you made #30Under30, don’t give your personal info to Forbes. I found a bug that lets any 30under30 member (like me) see other members’ DoBs, addresses, phones, etc. Forbes igno	1.8×	0	1.3k	380	0
56	Dec 3, '19	got the best, AKA worst, hackerone report ever. someone reported that an attacker website can figure out a person's IP address by gaining local access to the person's machine, in	1.7×	0	1.5k	181	40
57	Oct 18, '19	i don’t know who needs to see this but here u go	1.7×	0	1.5k	242	21
58	Sep 14, '20	my biggest takeaway from this article is that FB could be doing a lot more to prevent politically-motivated bot activity, but they choose not to because they don't see any immediat	1.7×	0	1.3k	357	20
59	Feb 23, '19	i hate the confrontational tone of 'git blame'. from now on i will rename it to 'git thanks'.	1.7×	0	1.4k	217	5
60	Nov 18, '21	just gave my first guest lecture at stanford after dropping out in 2012 lol	1.6×	0	1.8k	45	35
61	May 14, '18	<👁/>	1.6×	0	1.7k	141	5
62	Nov 21, '19	OMG someone actually discovered malware (on the official Monero website) because the attackers changed the download binary but didn't change the hashes posted on the website this i	1.6×	0	1.2k	329	28
63	Mar 22, '18	fun way to monitor someone's IP address: 1. create a paid slack workspace 2. get them to join your slack 3. now you can see their IP address and device type in Slack's access logs	1.6×	0	984	387	45
64	Jan 27, '22	u mean to tell me i didn’t need to type “sudo” for the last 12 years??	1.6×	0	1.5k	182	34
65	Nov 26, '17	who made this	1.6×	0	1.3k	322	0
66	Jul 24, '20	crypto/privacy bingo card, tag urself	1.6×	0	1k	220	72
67	Apr 26, '19	my friends: me: what if Game of Thrones is actually the prequel to the Redwall series because everyone dies at the end and small woodland animals become the dominant species	1.6×	0	1.4k	186	10
68	Oct 11, '17	gitcoin: the author of the commit sha1 with the longest prefix of 0's in your repository is now the project maintainer	1.6×	0	1.1k	391	0
69	Sep 3, '22	just got the heartbreaking news that peter eckersley is in the hospital and may not make it. there will be a vigil for him at 7pm in duboce park. if you want to share a story about	1.6×	0	1.3k	141	72
70	Apr 14, '18	A lot of people ask "why should I work in software development as opposed to math/physics/finance/etc.?" One reason is that this field is surprisingly full of "inadequate equilibri	1.5×	0	1.1k	320	30
71	Dec 29, '17	it’d be cool to live in a society where you get to go to college for 1 year every several years in order to learn a new field	1.5×	0	1.4k	190	1
72	Jan 16, '19	ask yourself does this iptables rule spark joy	1.5×	0	1.2k	276	7
73	Aug 7, '19	this is an old optical illusion where there are 12 black dots in the pic but most ppl can't see all of them at once. since u aren't able to focus on all the dots simultaneously, ur	1.5×	0	929	322	64
74	Nov 19, '17	good starting point for debugging your thought patterns:	1.4×	0	972	366	7
75	Apr 22, '18	these were all done using makeup (no photoshop) by artist Mimi Choi	1.4×	0	1k	304	10
76	Aug 18, '16	there is a github thread with 42 messages in my inbox this morning where everyone is named Brian	1.4×	0	1.1k	304	0
77	Jun 22, '21	the new search engine we've been working on at @brave is now in public beta! * we don't track clicks or queries * we don't profile you * for localized results, we only use IP and d	1.4×	0	1k	245	46
78	Oct 15, '20	things the javascript event loop runs in: a thread	1.3×	0	1.3k	156	26
79	Feb 14, '18	dating preferences: UTC, 24-hour time, week starts on Monday	1.3×	0	1.1k	217	0
80	Sep 28, '19	great news!! it’s now possible to be 10x more goth than before because MIT has created a black that is 10x blacker then the previously-blackest black.	1.3×	0	974	205	25
81	Aug 13, '18	hi i just want to encourage you to tell someone that they matter, even if you think they know it already. it might sound dumb but someone did this for me and it saved my night.	1.2×	0	1.1k	201	8
82	Nov 29, '17	phew glad my rabbit didn’t login as root	1.2×	0	1.1k	177	0
83	Mar 2, '17	my neck my back my IRC and my Slack	1.2×	0	1.1k	209	0
84	Apr 26, '19	in today’s edition of “DMs that could have been phrased better”	1.2×	0	1.1k	137	5
85	Sep 14, '20	FYI Sophie did NOT leak this memo to Buzzfeed. she posted it internally at FB, and then @BuzzFeed published this article without her permission. I'm disappointed in @BuzzFeed for n	1.2×	0	1.1k	171	10
86	Feb 19, '18	dystopian novel idea: a near-future world in which the visible spectrum is subject to FCC regulation in order to control visual noise. artists have to apply for licenses to use cer	1.2×	0	979	172	0
87	Aug 6, '19	omfg my dentist today made a beat out of the dental cleaning tool sounds WHILE CLEANING MY TEETH and then she declared that her stage name would be Splash Mouth	1.1×	0	1.2k	76	7
88	Mar 13, '21	wear a mask	1.1×	0	1.1k	102	7
89	Oct 5, '19	this was the first galaxy brain meme i ever saw and im still not over it tbh	1.1×	0	937	172	26
90	Sep 9, '17	i right-click where i want	1.1×	0	1k	148	0
91	Feb 20, '19	everyone knows you're not a real software engineer unless you've collected sand to put into a furnace and purify into ingots for silicon wafers, duh	1.1×	0	979	140	6
92	Feb 27, '19	new year’s eve in 1970 must have been an epoch party	1.1×	0	952	161	4
93	Jul 30, '18	fun fact: i applied to throw a tea party (securiTEA) at defcon this year for folks who don’t like drinking. the hotel, which has a no-outside-beverages policy, wanted to charge us	1.0×	0	912	123	5
94	Oct 12, '20	absolutely stunned at the brutal honesty of this cover letter	1.0×	0	1k	59	14
95	Jun 23, '18	we don’t usually like colors, but today is an exception. happy #SFPride from azuki and me!! ❤️🧡💛💚💙💜🖤	1.0×	0	1.1k	28	6
96	Sep 3, '22	peter, among other things, was my first boss at EFF and gave me a chance in cybersecurity when nobody else did. he was the mastermind behind HTTPS Everywhere and Let’s Encrypt. few	1.0×	0	1k	86	13
97	Aug 17, '18	hello my cat here would like to participate in the social engineering contest	1.0×	0	889	124	4
98	Apr 24, '21	RIP @dakami. u were not only a brilliant hacker and artist but also a great friend. i’ll never forget how u paid for my trip to Toorcon so i could speak there, or all the times u w	0.9×	0	947	67	22
99	Mar 1, '18	my social media feeds are like 10% shitting on cryptocurrencies, 10% memes, 40% politics, 30% infosec, 5% people's personal updates, and 5% posts from my local rabbit shelter. the	0.9×	0	977	80	0
100	Oct 13, '21	not impressed	0.7×	0	810	29	5

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