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互联网从业者充电站

SaaS产品开发的安全小细节

很多人还不知道Gmail、Outlook这些邮箱都支持邮箱别名，如果你的产品支持邮箱注册，就需要考虑「邮箱别名」注册的潜在风险。

想想这种场景：你的SaaS 产品给新用户提供了免费额度，有人不想付费，就用邮箱别名无限注册、恶意白嫖新用户权益，这将无形中提高你的成本。

Nexty.dev 模板的解决方法之一是，写一个通用的邮箱过滤器，在邮箱注册流程里加上过滤器，这样就能过滤掉大部分常见别名格式。

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今天开始补充 Nexty.dev 各个模块的介绍和二开文档，文档完成后就会涨到和竞品同水平的价格。

现在使用早鸟优惠码（EarlyBird）只要$99，欢迎加入👉 https://nexty.dev/zh

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Create: 2025-05-16
Last Update: 2025-06-14 18:15:23

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Spiking bond yields driving sharp losses in tech stocks

A spike in interest rates since the start of the year has accelerated a rotation out of high-growth technology stocks and into value stocks poised to benefit from a reopening of the economy. The Nasdaq has fallen more than 10% over the past month as the Dow has soared to record highs, with a spike in the 10-year US Treasury yield acting as the main catalyst. It recently surged to a cycle high of more than 1.60% after starting the year below 1%. But according to Jim Paulsen, the Leuthold Group's chief investment strategist, rising interest rates do not represent a long-term threat to the stock market. Paulsen expects the 10-year yield to cross 2% by the end of the year. A spike in interest rates and its impact on the stock market depends on the economic backdrop, according to Paulsen. Rising interest rates amid a strengthening economy "may prove no challenge at all for stocks," Paulsen said.

Should I buy bitcoin?

“To the extent it is used I fear it’s often for illicit finance. It’s an extremely inefficient way of conducting transactions, and the amount of energy that’s consumed in processing those transactions is staggering,” the former Fed chairwoman said. Yellen’s comments have been cited as a reason for bitcoin’s recent losses. However, Yellen’s assessment of bitcoin as a inefficient medium of exchange is an important point and one that has already been raised in the past by bitcoin bulls. Using a volatile asset in exchange for goods and services makes little sense if the asset can tumble 10% in a day, or surge 80% over the course of a two months as bitcoin has done in 2021, critics argue. To put a finer point on it, over the past 12 months bitcoin has registered 8 corrections, defined as a decline from a recent peak of at least 10% but not more than 20%, and two bear markets, which are defined as falls of 20% or more, according to Dow Jones Market Data.