How Secure #kaspa Blockchain Is:
 The current Kaspa hashrate is around 1.58 EH/s (exa-hashes per second).
🔹 To successfully attack the network, an attacker would need more than 50% of the total hashrate.
🔹 This means they would need at least ~0.8 EH/s (800 PH/s), but for an effective attack, 1 EH/s or more would be more realistic.

➡ How Much Equipment Is Needed for a 51% Attack on Kaspa?

Kaspa uses the kHeavyHash algorithm, optimized for GPU and FPGA mining. To execute an attack, one would need to use ASIC or GPU farms.

🔹 If using the Antminer KS3 (8.3 TH/s), the most powerful ASIC for Kaspa:

One device provides 8.3 TH/s.

100,000+ KS3 units would be needed for a 51% attack.

🔹 If using GPU miners (RTX 4090 – around 4 GH/s):

Millions of GPUs would be required to achieve sufficient hashrate.

➡ How Much Would It Cost?

If we use the Antminer KS3 as a reference:
💰 One KS3 costs ~$9,000.
💰 To acquire 100,000 units, it would cost ~$900 million just for hardware.
💡 This does not include electricity, maintenance, and cooling costs.

➡ Is It Possible to Take Down the Kaspa Blockchain?

🚫 Very difficult, but not impossible.
❌ It would require an enormous investment (hundreds of millions of dollars).
❌ The network could detect the attack and react quickly (miners could increase power).
❌ The Kaspa team could modify the code to protect the network (as seen in other projects).

Conclusion

While a 51% attack on the Kaspa blockchain is theoretically possible, in practice, it is extremely expensive and complex, making the network highly secure

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