Only use indexer links from trusted sources to avoid phishing clones of the 1337x site.
While 1337x is safer than many competitors, it is still funded by advertising. The nature of the site forces it into "high-risk" ad networks. These networks often serve aggressive pop-ups, tech-support scams, or malware-laden "Download" buttons designed to trick users. This dark underbelly is the price of "free" content. 1337x indexer
The ultimate fear for 1337x operators is a coordinated global takedown, similar to the fall of Megaupload. The future of indexing lies in fully decentralized systems like IPFS (InterPlanetary File System), where the "site" is not hosted on a server, but distributed across every user's browser. Until that technology matures, 1337x remains the centralized standard-bearer. Only use indexer links from trusted sources to